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| author |   Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2022-01-18 10:54:02 +0000 |
|---|---|---|
| committer | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2022-01-18 10:54:02 +0000 |
| commit | 647bfd26bf054313305ea9c2c4a1c71f3bbfee63 (patch) | |
| tree | 49abfde459ef32c9811d06ae59dfbaf0000762ab /drivers/gpu/drm/msm/msm_perf.c | |
| parent | i915: make array flex_regs static const (diff) | |
| parent | Merge tag 'amd-drm-next-5.17-2022-01-12' of https://gitlab.freedesktop.org/agd5f/linux into drm-next (diff) | |
| download | wireguard-linux-647bfd26bf054313305ea9c2c4a1c71f3bbfee63.tar.xz wireguard-linux-647bfd26bf054313305ea9c2c4a1c71f3bbfee63.zip | |
Merge drm/drm-next into drm-intel-gt-next
Maarten needs backmerge to account for header file renames/changes which
landed via drm-intel-next and are interfering with his pinning work.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Diffstat (limited to 'drivers/gpu/drm/msm/msm_perf.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_perf.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/msm/msm_perf.c b/drivers/gpu/drm/msm/msm_perf.c index 3a27153eef08..3d3da79fec2a 100644 --- a/drivers/gpu/drm/msm/msm_perf.c +++ b/drivers/gpu/drm/msm/msm_perf.c @@ -155,9 +155,12 @@ static int perf_open(struct inode *inode, struct file *file) struct msm_gpu *gpu = priv->gpu; int ret = 0; - mutex_lock(&dev->struct_mutex); + if (!gpu) + return -ENODEV; - if (perf->open || !gpu) { + mutex_lock(&gpu->lock); + + if (perf->open) { ret = -EBUSY; goto out; } @@ -171,7 +174,7 @@ static int perf_open(struct inode *inode, struct file *file) perf->next_jiffies = jiffies + SAMPLE_TIME; out: - mutex_unlock(&dev->struct_mutex); + mutex_unlock(&gpu->lock); return ret; } |