diff options
| author | Ma Ke <make24@iscas.ac.cn> | 2025-11-16 10:44:11 +0800 |
|---|---|---|
| committer | Madhavan Srinivasan <maddy@linux.ibm.com> | 2026-05-12 11:49:30 +0530 |
| commit | 108d7f951271cbd36ca36efc5e5d106966f5180c (patch) | |
| tree | 4ae2cfa3a245dfe32537d80db0cd286cc67a4e36 | |
| parent | acd1e47db03d4b528fd5efb8565dd0de1c79f62a (diff) | |
powerpc/warp: Fix error handling in pika_dtm_thread
pika_dtm_thread() acquires client through of_find_i2c_device_by_node()
but fails to release it in error handling path. This could result in a
reference count leak, preventing proper cleanup and potentially
leading to resource exhaustion. Add put_device() to release the
reference in the error handling path.
Found by code review.
Cc: stable@vger.kernel.org
Fixes: 3984114f0562 ("powerpc/warp: Platform fix for i2c change")
Signed-off-by: Ma Ke <make24@iscas.ac.cn>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20251116024411.21968-1-make24@iscas.ac.cn
| -rw-r--r-- | arch/powerpc/platforms/44x/warp.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/44x/warp.c b/arch/powerpc/platforms/44x/warp.c index a5001d32f978..6f674f86dc85 100644 --- a/arch/powerpc/platforms/44x/warp.c +++ b/arch/powerpc/platforms/44x/warp.c @@ -293,6 +293,8 @@ static int pika_dtm_thread(void __iomem *fpga) schedule_timeout(HZ); } + put_device(&client->dev); + return 0; } |