diff options
| author | Manasi Navare <manasi.d.navare@intel.com> | 2018-12-19 15:51:20 -0800 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2018-12-20 08:02:33 +0000 |
| commit | 6afe8925a297a0458248e5e8b13dab91e782337e (patch) | |
| tree | 2a1aa8ed05c66de6f9d57f483f72d51fa0fb3f6e /drivers/gpu/drm/i915/i915_debugfs.c | |
| parent | 2a041c97c3bceab8b7f133658c22659e4a81bd75 (diff) | |
drm/i915/dsc: Fix the deadlock in dsc debugfs node
The DSC debugfs node causes a possible deadlock situation. This patch
resets the try_again at the beginning of loop to fix this.
Fixes: e845f099f1c6 ('drm/i915/dsc: Add Per connector debugfs node for DSC support/enable')
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109097
Cc: Lyude Paul <lyude@redhat.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20181219235120.21816-1-manasi.d.navare@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 77486a614614..aca26a25ed50 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -5108,6 +5108,7 @@ static int i915_dsc_fec_support_show(struct seq_file *m, void *data) drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE); do { + try_again = false; ret = drm_modeset_lock(&dev->mode_config.connection_mutex, &ctx); if (ret) { |