| Message ID | 20210531174300.2594109-1-trix@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | media: imx: imx7_mipi_csis: convert some switch cases to the default | expand |
Hi Tom, Thanks for the patch. On Mon May 31, 2021 at 6:43 PM WEST, wrote: > From: Tom Rix <trix@redhat.com> > > Static analysis reports this false positive > imx7-mipi-csis.c:1027:2: warning: 4th function call argument is > an uninitialized value > > The variable 'align' is falsely reported as uninitialized. > Even though all the cases are covered in the > switch (csis_fmt->width % 8) { > > Because there is no default case, it is reported as uninialized. > > Improve the switch by converting the most numerous set of cases > to the default and silence the false positive. > > Signed-off-by: Tom Rix <trix@redhat.com> It solves that, looks good to me. Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com> ------ Cheers, Rui > --- > drivers/staging/media/imx/imx7-mipi-csis.c | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) > > diff --git a/drivers/staging/media/imx/imx7-mipi-csis.c b/drivers/staging/media/imx/imx7-mipi-csis.c > index d573f3475d28..330f283030ec 100644 > --- a/drivers/staging/media/imx/imx7-mipi-csis.c > +++ b/drivers/staging/media/imx/imx7-mipi-csis.c > @@ -1016,10 +1016,8 @@ static int mipi_csis_set_fmt(struct v4l2_subdev *sd, > case 6: > align = 2; > break; > - case 1: > - case 3: > - case 5: > - case 7: > + default: > + /* 1, 3, 5, 7 */ > align = 3; > break; > } > -- > 2.26.3
Hi Tom, Thank you for the patch. On Mon, May 31, 2021 at 10:43:00AM -0700, trix@redhat.com wrote: > From: Tom Rix <trix@redhat.com> > > Static analysis reports this false positive > imx7-mipi-csis.c:1027:2: warning: 4th function call argument is > an uninitialized value > > The variable 'align' is falsely reported as uninitialized. > Even though all the cases are covered in the > switch (csis_fmt->width % 8) { > > Because there is no default case, it is reported as uninialized. > > Improve the switch by converting the most numerous set of cases > to the default and silence the false positive. > > Signed-off-by: Tom Rix <trix@redhat.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > --- > drivers/staging/media/imx/imx7-mipi-csis.c | 6 ++---- > 1 file changed, 2 insertions(+), 4 deletions(-) > > diff --git a/drivers/staging/media/imx/imx7-mipi-csis.c b/drivers/staging/media/imx/imx7-mipi-csis.c > index d573f3475d28..330f283030ec 100644 > --- a/drivers/staging/media/imx/imx7-mipi-csis.c > +++ b/drivers/staging/media/imx/imx7-mipi-csis.c > @@ -1016,10 +1016,8 @@ static int mipi_csis_set_fmt(struct v4l2_subdev *sd, > case 6: > align = 2; > break; > - case 1: > - case 3: > - case 5: > - case 7: > + default: > + /* 1, 3, 5, 7 */ > align = 3; > break; > }
diff --git a/drivers/staging/media/imx/imx7-mipi-csis.c b/drivers/staging/media/imx/imx7-mipi-csis.c index d573f3475d28..330f283030ec 100644 --- a/drivers/staging/media/imx/imx7-mipi-csis.c +++ b/drivers/staging/media/imx/imx7-mipi-csis.c @@ -1016,10 +1016,8 @@ static int mipi_csis_set_fmt(struct v4l2_subdev *sd, case 6: align = 2; break; - case 1: - case 3: - case 5: - case 7: + default: + /* 1, 3, 5, 7 */ align = 3; break; }