| Message ID | bf2e2e69226b20d173cce66287f59488fd47474b.1646588375.git.christophe.jaillet@wanadoo.fr (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | mmc: wmt-sdmmc: Fix an error handling path in wmt_mci_probe() | expand |
On Sun, 6 Mar 2022 at 18:44, Christophe JAILLET <christophe.jaillet@wanadoo.fr> wrote: > > A dma_free_coherent() call is missing in the error handling path of the > probe, as already done in the remove function. > > Fixes: 3a96dff0f828 ("mmc: SD/MMC Host Controller for Wondermedia WM8505/WM8650") > Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> > --- > I've not been able to find a Fixes tag because of the renaming of > function and files. > However, it looks old (before 2008) Let's keep the above and monitor what the backport process reports. Applied for next, thanks! Kind regards Uffe > --- > drivers/mmc/host/wmt-sdmmc.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/mmc/host/wmt-sdmmc.c b/drivers/mmc/host/wmt-sdmmc.c > index 163ac9df8cca..8e18f01c0938 100644 > --- a/drivers/mmc/host/wmt-sdmmc.c > +++ b/drivers/mmc/host/wmt-sdmmc.c > @@ -863,6 +863,8 @@ static int wmt_mci_probe(struct platform_device *pdev) > return 0; > fail6: > clk_put(priv->clk_sdmmc); > + dma_free_coherent(&pdev->dev, mmc->max_blk_count * 16, > + priv->dma_desc_buffer, priv->dma_desc_device_addr); > fail5: > free_irq(dma_irq, priv); > fail4: > -- > 2.32.0 >
On Sun, Mar 06, 2022 at 06:44:56PM +0100, Christophe JAILLET wrote: > A dma_free_coherent() call is missing in the error handling path of the > probe, as already done in the remove function. > > Fixes: 3a96dff0f828 ("mmc: SD/MMC Host Controller for Wondermedia WM8505/WM8650") > Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> > --- > I've not been able to find a Fixes tag because of the renaming of > function and files. > However, it looks old (before 2008) You did add a fixes tag and it's from 2012. :P > --- > drivers/mmc/host/wmt-sdmmc.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/drivers/mmc/host/wmt-sdmmc.c b/drivers/mmc/host/wmt-sdmmc.c > index 163ac9df8cca..8e18f01c0938 100644 > --- a/drivers/mmc/host/wmt-sdmmc.c > +++ b/drivers/mmc/host/wmt-sdmmc.c > @@ -863,6 +863,8 @@ static int wmt_mci_probe(struct platform_device *pdev) > return 0; > fail6: > clk_put(priv->clk_sdmmc); > + dma_free_coherent(&pdev->dev, mmc->max_blk_count * 16, > + priv->dma_desc_buffer, priv->dma_desc_device_addr); > fail5: > free_irq(dma_irq, priv); This isn't quite right. If of_clk_get() fails it should call dma_free_coherent() but it does not. You need to add: fail6: clk_put(priv->clk_sdmmc); +fail5_and_a_half: + dma_free_coherent(&pdev->dev, mmc->max_blk_count * 16, + priv->dma_desc_buffer, priv->dma_desc_device_addr); fail5: free_irq(dma_irq, priv); regards, dan carpenter
On Tue, 8 Mar 2022 at 13:55, Dan Carpenter <dan.carpenter@oracle.com> wrote: > > On Sun, Mar 06, 2022 at 06:44:56PM +0100, Christophe JAILLET wrote: > > A dma_free_coherent() call is missing in the error handling path of the > > probe, as already done in the remove function. > > > > Fixes: 3a96dff0f828 ("mmc: SD/MMC Host Controller for Wondermedia WM8505/WM8650") > > Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> > > --- > > I've not been able to find a Fixes tag because of the renaming of > > function and files. > > However, it looks old (before 2008) > > You did add a fixes tag and it's from 2012. :P > > > --- > > drivers/mmc/host/wmt-sdmmc.c | 2 ++ > > 1 file changed, 2 insertions(+) > > > > diff --git a/drivers/mmc/host/wmt-sdmmc.c b/drivers/mmc/host/wmt-sdmmc.c > > index 163ac9df8cca..8e18f01c0938 100644 > > --- a/drivers/mmc/host/wmt-sdmmc.c > > +++ b/drivers/mmc/host/wmt-sdmmc.c > > @@ -863,6 +863,8 @@ static int wmt_mci_probe(struct platform_device *pdev) > > return 0; > > fail6: > > clk_put(priv->clk_sdmmc); > > + dma_free_coherent(&pdev->dev, mmc->max_blk_count * 16, > > + priv->dma_desc_buffer, priv->dma_desc_device_addr); > > fail5: > > free_irq(dma_irq, priv); > > This isn't quite right. If of_clk_get() fails it should call > dma_free_coherent() but it does not. You need to add: > > fail6: > clk_put(priv->clk_sdmmc); > +fail5_and_a_half: > + dma_free_coherent(&pdev->dev, mmc->max_blk_count * 16, > + priv->dma_desc_buffer, priv->dma_desc_device_addr); > fail5: > free_irq(dma_irq, priv); > > regards, > dan carpenter Thanks Dan for reviewing, I have dropped the $subject patch from my next branch. Kind regards Uffe
Le 08/03/2022 à 13:54, Dan Carpenter a écrit : > On Sun, Mar 06, 2022 at 06:44:56PM +0100, Christophe JAILLET wrote: >> A dma_free_coherent() call is missing in the error handling path of the >> probe, as already done in the remove function. >> >> Fixes: 3a96dff0f828 ("mmc: SD/MMC Host Controller for Wondermedia WM8505/WM8650") >> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> >> --- >> I've not been able to find a Fixes tag because of the renaming of >> function and files. >> However, it looks old (before 2008) > > You did add a fixes tag and it's from 2012. :P Well, a bit too much of copy&paste from [1] :( [1]: https://lore.kernel.org/all/242ebc5e7dedc6b0d7f47cbf7768326c127f955b.1646584729.git.christophe.jaillet@wanadoo.fr/ > >> --- >> drivers/mmc/host/wmt-sdmmc.c | 2 ++ >> 1 file changed, 2 insertions(+) >> >> diff --git a/drivers/mmc/host/wmt-sdmmc.c b/drivers/mmc/host/wmt-sdmmc.c >> index 163ac9df8cca..8e18f01c0938 100644 >> --- a/drivers/mmc/host/wmt-sdmmc.c >> +++ b/drivers/mmc/host/wmt-sdmmc.c >> @@ -863,6 +863,8 @@ static int wmt_mci_probe(struct platform_device *pdev) >> return 0; >> fail6: >> clk_put(priv->clk_sdmmc); >> + dma_free_coherent(&pdev->dev, mmc->max_blk_count * 16, >> + priv->dma_desc_buffer, priv->dma_desc_device_addr); >> fail5: >> free_irq(dma_irq, priv); > > This isn't quite right. If of_clk_get() fails it should call > dma_free_coherent() but it does not. You need to add: Agreed, thx for the review. If no one fix it in the meanwhile, I'll send a v2 this WE or next week. CJ > > fail6: > clk_put(priv->clk_sdmmc); > +fail5_and_a_half: > + dma_free_coherent(&pdev->dev, mmc->max_blk_count * 16, > + priv->dma_desc_buffer, priv->dma_desc_device_addr); > fail5: > free_irq(dma_irq, priv); > > regards, > dan carpenter > >
diff --git a/drivers/mmc/host/wmt-sdmmc.c b/drivers/mmc/host/wmt-sdmmc.c index 163ac9df8cca..8e18f01c0938 100644 --- a/drivers/mmc/host/wmt-sdmmc.c +++ b/drivers/mmc/host/wmt-sdmmc.c @@ -863,6 +863,8 @@ static int wmt_mci_probe(struct platform_device *pdev) return 0; fail6: clk_put(priv->clk_sdmmc); + dma_free_coherent(&pdev->dev, mmc->max_blk_count * 16, + priv->dma_desc_buffer, priv->dma_desc_device_addr); fail5: free_irq(dma_irq, priv); fail4:
A dma_free_coherent() call is missing in the error handling path of the probe, as already done in the remove function. Fixes: 3a96dff0f828 ("mmc: SD/MMC Host Controller for Wondermedia WM8505/WM8650") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> --- I've not been able to find a Fixes tag because of the renaming of function and files. However, it looks old (before 2008) --- drivers/mmc/host/wmt-sdmmc.c | 2 ++ 1 file changed, 2 insertions(+)