mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

dmaengine: imx-sdma: Fix error checking in sdma_event_remap 

[ Upstream commit 7104b9cb35 ]

of_parse_phandle() returns NULL on errors, rather than error
pointers. Using NULL check on grp_np to fix this.

Fixes: d078cd1b41 ("dmaengine: imx-sdma: Add imx6sx platform support")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Link: https://lore.kernel.org/r/20220308064952.15743-1-linmq006@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Miaoqian Lin 2022-03-08 06:49:51 +00:00 committed by Greg Kroah-Hartman
parent 90187e02a7
commit 2c89b4d022
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/dma/imx-sdma.c
View File

@ -1528,7 +1528,7 @@ static int sdma_event_remap(struct sdma_engine *sdma)
u32 reg, val, shift, num_map, i;
int ret = 0;
if (IS_ERR(np) || IS_ERR(gpr_np))
if (IS_ERR(np) || !gpr_np)
goto out;
event_remap = of_find_property(np, propname, NULL);
@ -1576,7 +1576,7 @@ static int sdma_event_remap(struct sdma_engine *sdma)
}
out:
if (!IS_ERR(gpr_np))
if (gpr_np)
of_node_put(gpr_np);
return ret;