| Message ID | d7b25026f82659da3c6f7159eea480faa9d738be.1620327302.git.christophe.jaillet@wanadoo.fr (mailing list archive) |
|---|---|
| State | Superseded, archived |
| Headers | show |
| Series | video: fbdev: imxfb: Fix an error message | expand |
Hello Christophe, On Thu, May 06, 2021 at 08:57:05PM +0200, Christophe JAILLET wrote: > 'ret' is known to be 0 here. > No error code is available, so just remove it from the error message. > > Fixes: 72330b0eeefc ("i.MX Framebuffer: Use readl/writel instead of direct pointer deref") > Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> > --- > drivers/video/fbdev/imxfb.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/video/fbdev/imxfb.c b/drivers/video/fbdev/imxfb.c > index 7f8debd2da06..ad598257ab38 100644 > --- a/drivers/video/fbdev/imxfb.c > +++ b/drivers/video/fbdev/imxfb.c > @@ -992,7 +992,7 @@ static int imxfb_probe(struct platform_device *pdev) > info->screen_buffer = dma_alloc_wc(&pdev->dev, fbi->map_size, > &fbi->map_dma, GFP_KERNEL); > if (!info->screen_buffer) { > - dev_err(&pdev->dev, "Failed to allocate video RAM: %d\n", ret); > + dev_err(&pdev->dev, "Failed to allocate video RAM\n"); > ret = -ENOMEM; > goto failed_map; > } Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Are you using this driver, or did you find that problem using some static checker? Best regards Uwe
Le 07/05/2021 à 07:05, Uwe Kleine-König a écrit : > Hello Christophe, > > On Thu, May 06, 2021 at 08:57:05PM +0200, Christophe JAILLET wrote: >> 'ret' is known to be 0 here. >> No error code is available, so just remove it from the error message. >> >> Fixes: 72330b0eeefc ("i.MX Framebuffer: Use readl/writel instead of direct pointer deref") >> Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> >> --- >> drivers/video/fbdev/imxfb.c | 2 +- >> 1 file changed, 1 insertion(+), 1 deletion(-) >> >> diff --git a/drivers/video/fbdev/imxfb.c b/drivers/video/fbdev/imxfb.c >> index 7f8debd2da06..ad598257ab38 100644 >> --- a/drivers/video/fbdev/imxfb.c >> +++ b/drivers/video/fbdev/imxfb.c >> @@ -992,7 +992,7 @@ static int imxfb_probe(struct platform_device *pdev) >> info->screen_buffer = dma_alloc_wc(&pdev->dev, fbi->map_size, >> &fbi->map_dma, GFP_KERNEL); >> if (!info->screen_buffer) { >> - dev_err(&pdev->dev, "Failed to allocate video RAM: %d\n", ret); >> + dev_err(&pdev->dev, "Failed to allocate video RAM\n"); >> ret = -ENOMEM; >> goto failed_map; >> } > > Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> > > Are you using this driver, or did you find that problem using some > static checker? > No, I'm not using this driver AFAIK. It has been spotted by coccinelle with a hand-made script which tries to find places where error code is used before being initialized. The script in it-self is not really interesting. It is easy to write and my own version trigger way to much false positives. CJ > Best regards > Uwe >
Hello Christophe, [dropping krzysztof.h1@poczta.fm from recipents, the address doesn't seem to exist] On Fri, May 07, 2021 at 09:11:19AM +0200, Christophe JAILLET wrote: > Le 07/05/2021 à 07:05, Uwe Kleine-König a écrit : > > On Thu, May 06, 2021 at 08:57:05PM +0200, Christophe JAILLET wrote: > > > 'ret' is known to be 0 here. > > > No error code is available, so just remove it from the error message. > > > > > > Fixes: 72330b0eeefc ("i.MX Framebuffer: Use readl/writel instead of direct pointer deref") > > > Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> > > > --- > > > drivers/video/fbdev/imxfb.c | 2 +- > > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > > > diff --git a/drivers/video/fbdev/imxfb.c b/drivers/video/fbdev/imxfb.c > > > index 7f8debd2da06..ad598257ab38 100644 > > > --- a/drivers/video/fbdev/imxfb.c > > > +++ b/drivers/video/fbdev/imxfb.c > > > @@ -992,7 +992,7 @@ static int imxfb_probe(struct platform_device *pdev) > > > info->screen_buffer = dma_alloc_wc(&pdev->dev, fbi->map_size, > > > &fbi->map_dma, GFP_KERNEL); > > > if (!info->screen_buffer) { > > > - dev_err(&pdev->dev, "Failed to allocate video RAM: %d\n", ret); > > > + dev_err(&pdev->dev, "Failed to allocate video RAM\n"); > > > ret = -ENOMEM; > > > goto failed_map; > > > } > > > > Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> > > > > Are you using this driver, or did you find that problem using some > > static checker? > > No, I'm not using this driver AFAIK. OK, thanks. (We're working on a DRM driver for this hardware. So you could have been an interested tester.) Best regards Uwe
On Fri, May 07, 2021 at 07:05:03AM +0200, Uwe Kleine-König wrote: > Hello Christophe, > > On Thu, May 06, 2021 at 08:57:05PM +0200, Christophe JAILLET wrote: > > 'ret' is known to be 0 here. > > No error code is available, so just remove it from the error message. > > > > Fixes: 72330b0eeefc ("i.MX Framebuffer: Use readl/writel instead of direct pointer deref") > > Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> > > --- > > drivers/video/fbdev/imxfb.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/drivers/video/fbdev/imxfb.c b/drivers/video/fbdev/imxfb.c > > index 7f8debd2da06..ad598257ab38 100644 > > --- a/drivers/video/fbdev/imxfb.c > > +++ b/drivers/video/fbdev/imxfb.c > > @@ -992,7 +992,7 @@ static int imxfb_probe(struct platform_device *pdev) > > info->screen_buffer = dma_alloc_wc(&pdev->dev, fbi->map_size, > > &fbi->map_dma, GFP_KERNEL); > > if (!info->screen_buffer) { > > - dev_err(&pdev->dev, "Failed to allocate video RAM: %d\n", ret); > > + dev_err(&pdev->dev, "Failed to allocate video RAM\n"); > > ret = -ENOMEM; > > goto failed_map; > > } > > Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Thanks for patch& review, queued for 5.14 in drm-misc-next. -Daniel > > Are you using this driver, or did you find that problem using some > static checker? > > Best regards > Uwe > > -- > Pengutronix e.K. | Uwe Kleine-König | > Industrial Linux Solutions | https://www.pengutronix.de/ |
diff --git a/drivers/video/fbdev/imxfb.c b/drivers/video/fbdev/imxfb.c index 7f8debd2da06..ad598257ab38 100644 --- a/drivers/video/fbdev/imxfb.c +++ b/drivers/video/fbdev/imxfb.c @@ -992,7 +992,7 @@ static int imxfb_probe(struct platform_device *pdev) info->screen_buffer = dma_alloc_wc(&pdev->dev, fbi->map_size, &fbi->map_dma, GFP_KERNEL); if (!info->screen_buffer) { - dev_err(&pdev->dev, "Failed to allocate video RAM: %d\n", ret); + dev_err(&pdev->dev, "Failed to allocate video RAM\n"); ret = -ENOMEM; goto failed_map; }
'ret' is known to be 0 here. No error code is available, so just remove it from the error message. Fixes: 72330b0eeefc ("i.MX Framebuffer: Use readl/writel instead of direct pointer deref") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> --- drivers/video/fbdev/imxfb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)