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 --- arch/powerpc/platforms/44x/warp.c | 2 ++ 1 file changed, 2 insertions(+)

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; }