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drm: Fix return type of crc .poll() 

Sparse compains:
../drivers/gpu/drm/drm_debugfs_crc.c:350:17: warning: incorrect type in initializer (different base types)
../drivers/gpu/drm/drm_debugfs_crc.c:350:17:    expected restricted __poll_t ( *poll )( ... )
../drivers/gpu/drm/drm_debugfs_crc.c:350:17:    got unsigned int ( * )( ... )

Change the .poll() return type to __poll_t to silence it.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190710125143.9965-5-ville.syrjala@linux.intel.com
Reviewed-by: Sean Paul <sean@poorly.run>
This commit is contained in:
Ville Syrjälä 2019-07-10 15:51:43 +03:00
parent b9436986d2
commit 1ab2a99edb
1 changed files with 3 additions and 5 deletions
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8
drivers/gpu/drm/drm_debugfs_crc.c
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@ -334,19 +334,17 @@ static ssize_t crtc_crc_read(struct file *filep, char __user *user_buf,
return LINE_LEN(crc->values_cnt);
}
static unsigned int crtc_crc_poll(struct file *file, poll_table *wait)
static __poll_t crtc_crc_poll(struct file *file, poll_table *wait)
{
struct drm_crtc *crtc = file->f_inode->i_private;
struct drm_crtc_crc *crc = &crtc->crc;
unsigned ret;
__poll_t ret = 0;
poll_wait(file, &crc->wq, wait);
spin_lock_irq(&crc->lock);
if (crc->source && crtc_crc_data_count(crc))
ret = POLLIN | POLLRDNORM;
else
ret = 0;
ret |= EPOLLIN | EPOLLRDNORM;
spin_unlock_irq(&crc->lock);
return ret;