Hi, On Thu, Oct 14, 2021 at 11:48:10PM -0700, Qing Wang wrote: > show() must not use snprintf() when formatting the value to be > returned to user space. > > Fix the following coccicheck warning: > drivers/gpu/drm/panel/panel-dsi-cm.c:251: WARNING: use scnprintf or sprintf. > drivers/gpu/drm/panel/panel-dsi-cm.c:271: WARNING: use scnprintf or sprintf. > > Use sysfs_emit instead of scnprintf or sprintf makes more sense. > > Signed-off-by: Qing Wang <wangqing@xxxxxxxx> > --- The patch subject could be more specific (this updates just one panel driver). Otherwise: Reviewed-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx> -- Sebastian > drivers/gpu/drm/panel/panel-dsi-cm.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/panel/panel-dsi-cm.c b/drivers/gpu/drm/panel/panel-dsi-cm.c > index 5fbfb71..a8efb06 100644 > --- a/drivers/gpu/drm/panel/panel-dsi-cm.c > +++ b/drivers/gpu/drm/panel/panel-dsi-cm.c > @@ -248,7 +248,7 @@ static ssize_t num_dsi_errors_show(struct device *dev, > if (r) > return r; > > - return snprintf(buf, PAGE_SIZE, "%d\n", errors); > + return sysfs_emit(buf, "%d\n", errors); > } > > static ssize_t hw_revision_show(struct device *dev, > @@ -268,7 +268,7 @@ static ssize_t hw_revision_show(struct device *dev, > if (r) > return r; > > - return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x\n", id1, id2, id3); > + return sysfs_emit(buf, "%02x.%02x.%02x\n", id1, id2, id3); > } > > static DEVICE_ATTR_RO(num_dsi_errors); > -- > 2.7.4 >
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