FROMLIST: drm/bridge: lt9611uxc: reset edid_read on disconnect#225
Open
nlaad-qcom wants to merge 1 commit intoqualcomm-linux:qcom-6.18.yfrom
Open
FROMLIST: drm/bridge: lt9611uxc: reset edid_read on disconnect#225nlaad-qcom wants to merge 1 commit intoqualcomm-linux:qcom-6.18.yfrom
nlaad-qcom wants to merge 1 commit intoqualcomm-linux:qcom-6.18.yfrom
Conversation
Currently edid_read has value from previous connect session and resulting in drm using older edid before new edid is available in lt9611uxc. Reset edid_read so that correct status is updated and correct edid is available for drm. Link: https://lore.kernel.org/lkml/[email protected]/T/#u Signed-off-by: Ravi Agola <[email protected]> Signed-off-by: Nilesh Laad <[email protected]>
rlaggysh
pushed a commit
to rlaggysh/kernel
that referenced
this pull request
Feb 5, 2026
After a successful auxiliary_device_init(), aux_dev->dev.release (xe_nvm_release_dev()) is responsible for the kfree(nvm). When there is failure with auxiliary_device_add(), driver will call auxiliary_device_uninit(), which call put_device(). So that the .release callback will be triggered to free the memory associated with the auxiliary_device. Move the kfree(nvm) into the auxiliary_device_init() failure path and remove the err goto path to fix below error. " [ 13.232905] ================================================================== [ 13.232911] BUG: KASAN: double-free in xe_nvm_init+0x751/0xf10 [xe] [ 13.233112] Free of addr ffff888120635000 by task systemd-udevd/273 [ 13.233120] CPU: 8 UID: 0 PID: 273 Comm: systemd-udevd Not tainted 6.19.0-rc2-lgci-xe-kernel+ qualcomm-linux#225 PREEMPT(voluntary) ... [ 13.233125] Call Trace: [ 13.233126] <TASK> [ 13.233127] dump_stack_lvl+0x7f/0xc0 [ 13.233132] print_report+0xce/0x610 [ 13.233136] ? kasan_complete_mode_report_info+0x5d/0x1e0 [ 13.233139] ? xe_nvm_init+0x751/0xf10 [xe] ... " v2: drop err goto path. (Alexander) Fixes: 7926ba2 ("drm/xe: defer free of NVM auxiliary container to device release callback") Reviewed-by: Nitin Gote <[email protected]> Reviewed-by: Brian Nguyen <[email protected]> Cc: Alexander Usyskin <[email protected]> Cc: Rodrigo Vivi <[email protected]> Suggested-by: Brian Nguyen <[email protected]> Signed-off-by: Shuicheng Lin <[email protected]> Signed-off-by: Ashutosh Dixit <[email protected]> Link: https://patch.msgid.link/[email protected] (cherry picked from commit a3187c0) Signed-off-by: Thomas Hellström <[email protected]>
Pls add CRs-Fixed: to PR description. |
svankas
pushed a commit
to svankas/kernel
that referenced
this pull request
Feb 16, 2026
[ Upstream commit 8a44241 ] After a successful auxiliary_device_init(), aux_dev->dev.release (xe_nvm_release_dev()) is responsible for the kfree(nvm). When there is failure with auxiliary_device_add(), driver will call auxiliary_device_uninit(), which call put_device(). So that the .release callback will be triggered to free the memory associated with the auxiliary_device. Move the kfree(nvm) into the auxiliary_device_init() failure path and remove the err goto path to fix below error. " [ 13.232905] ================================================================== [ 13.232911] BUG: KASAN: double-free in xe_nvm_init+0x751/0xf10 [xe] [ 13.233112] Free of addr ffff888120635000 by task systemd-udevd/273 [ 13.233120] CPU: 8 UID: 0 PID: 273 Comm: systemd-udevd Not tainted 6.19.0-rc2-lgci-xe-kernel+ qualcomm-linux#225 PREEMPT(voluntary) ... [ 13.233125] Call Trace: [ 13.233126] <TASK> [ 13.233127] dump_stack_lvl+0x7f/0xc0 [ 13.233132] print_report+0xce/0x610 [ 13.233136] ? kasan_complete_mode_report_info+0x5d/0x1e0 [ 13.233139] ? xe_nvm_init+0x751/0xf10 [xe] ... " v2: drop err goto path. (Alexander) Fixes: 7926ba2 ("drm/xe: defer free of NVM auxiliary container to device release callback") Reviewed-by: Nitin Gote <[email protected]> Reviewed-by: Brian Nguyen <[email protected]> Cc: Alexander Usyskin <[email protected]> Cc: Rodrigo Vivi <[email protected]> Suggested-by: Brian Nguyen <[email protected]> Signed-off-by: Shuicheng Lin <[email protected]> Signed-off-by: Ashutosh Dixit <[email protected]> Link: https://patch.msgid.link/[email protected] (cherry picked from commit a3187c0) Signed-off-by: Thomas Hellström <[email protected]> Signed-off-by: Sasha Levin <[email protected]>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Currently edid_read has value from previous connect session and resulting in drm using older edid before new edid is available in lt9611uxc.
Reset edid_read so that correct status is updated and correct edid is available for drm.
Link: https://lore.kernel.org/lkml/[email protected]/
CR-Fixed: https://orbit/cr/4144967