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drm/panel: dsi-cm: replace snprintf in show functions with sysfs_emit

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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@vivo.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1634280490-4429-1-git-send-email-wangqing@vivo.com
This commit is contained in:
Qing Wang 2021-10-14 23:48:10 -07:00 committed by Sam Ravnborg
parent f6632721cd
commit 5f9741f53a
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/panel/panel-dsi-cm.c
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@ -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);