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fbdev/omap: sysfs files can't disappear before the device is gone

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Which means lock_fb_info can never fail. Remove the error handling.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190528090304.9388-13-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter 2019-05-28 11:02:43 +02:00
parent 0fe66f327c
commit 1e16eaebe2
1 changed files with 7 additions and 14 deletions
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21
drivers/video/fbdev/omap2/omapfb/omapfb-sysfs.c
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@ -60,8 +60,7 @@ static ssize_t store_rotate_type(struct device *dev,
if (rot_type != OMAP_DSS_ROT_DMA && rot_type != OMAP_DSS_ROT_VRFB)
return -EINVAL;
if (!lock_fb_info(fbi))
return -ENODEV;
lock_fb_info(fbi);
r = 0;
if (rot_type == ofbi->rotation_type)
@ -112,8 +111,7 @@ static ssize_t store_mirror(struct device *dev,
if (r)
return r;
if (!lock_fb_info(fbi))
return -ENODEV;
lock_fb_info(fbi);
ofbi->mirror = mirror;
@ -149,8 +147,7 @@ static ssize_t show_overlays(struct device *dev,
ssize_t l = 0;
int t;
if (!lock_fb_info(fbi))
return -ENODEV;
lock_fb_info(fbi);
omapfb_lock(fbdev);
for (t = 0; t < ofbi->num_overlays; t++) {
@ -208,8 +205,7 @@ static ssize_t store_overlays(struct device *dev, struct device_attribute *attr,
if (buf[len - 1] == '\n')
len = len - 1;
if (!lock_fb_info(fbi))
return -ENODEV;
lock_fb_info(fbi);
omapfb_lock(fbdev);
if (len > 0) {
@ -340,8 +336,7 @@ static ssize_t show_overlays_rotate(struct device *dev,
ssize_t l = 0;
int t;
if (!lock_fb_info(fbi))
return -ENODEV;
lock_fb_info(fbi);
for (t = 0; t < ofbi->num_overlays; t++) {
l += snprintf(buf + l, PAGE_SIZE - l, "%s%d",
@ -369,8 +364,7 @@ static ssize_t store_overlays_rotate(struct device *dev,
if (buf[len - 1] == '\n')
len = len - 1;
if (!lock_fb_info(fbi))
return -ENODEV;
lock_fb_info(fbi);
if (len > 0) {
char *p = (char *)buf;
@ -453,8 +447,7 @@ static ssize_t store_size(struct device *dev, struct device_attribute *attr,
size = PAGE_ALIGN(size);
if (!lock_fb_info(fbi))
return -ENODEV;
lock_fb_info(fbi);
if (display && display->driver->sync)
display->driver->sync(display);