[PATCH 5.10 068/563] media: atomisp: do not use err var when checking port validity for ISP2400
From: Greg Kroah-Hartman
Date: Mon Jan 24 2022 - 16:03:41 EST
From: Tsuchiya Yuto <kitakar@xxxxxxxxx>
[ Upstream commit 9f6b4fa2d2dfbff4b8a57eeb39b1128a6094ee20 ]
Currently, the `port >= N_CSI_PORTS || err` checks for ISP2400 are always
evaluated as true because the err variable is set to `-EINVAL` on
declaration but the variable is never used until the evaluation.
Looking at the diff of commit 3c0538fbad9f ("media: atomisp: get rid of
most checks for ISP2401 version"), the `port >= N_CSI_PORTS` check is
for ISP2400 and the err variable check is for ISP2401. Fix this issue
by adding ISP version test there accordingly.
Fixes: 3c0538fbad9f ("media: atomisp: get rid of most checks for ISP2401 version")
Signed-off-by: Tsuchiya Yuto <kitakar@xxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/staging/media/atomisp/pci/sh_css_mipi.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/staging/media/atomisp/pci/sh_css_mipi.c b/drivers/staging/media/atomisp/pci/sh_css_mipi.c
index e18c0cfb4ce3a..34b71c1b7c1ec 100644
--- a/drivers/staging/media/atomisp/pci/sh_css_mipi.c
+++ b/drivers/staging/media/atomisp/pci/sh_css_mipi.c
@@ -446,7 +446,8 @@ allocate_mipi_frames(struct ia_css_pipe *pipe,
assert(port < N_CSI_PORTS);
- if (port >= N_CSI_PORTS || err) {
+ if ((!IS_ISP2401 && port >= N_CSI_PORTS) ||
+ (IS_ISP2401 && err)) {
ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
"allocate_mipi_frames(%p) exit: error: port is not correct (port=%d).\n",
pipe, port);
@@ -578,7 +579,8 @@ free_mipi_frames(struct ia_css_pipe *pipe) {
assert(port < N_CSI_PORTS);
- if (port >= N_CSI_PORTS || err) {
+ if ((!IS_ISP2401 && port >= N_CSI_PORTS) ||
+ (IS_ISP2401 && err)) {
ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE_PRIVATE,
"free_mipi_frames(%p, %d) exit: error: pipe port is not correct.\n",
pipe, port);
@@ -690,7 +692,8 @@ send_mipi_frames(struct ia_css_pipe *pipe) {
assert(port < N_CSI_PORTS);
- if (port >= N_CSI_PORTS || err) {
+ if ((!IS_ISP2401 && port >= N_CSI_PORTS) ||
+ (IS_ISP2401 && err)) {
IA_CSS_ERROR("send_mipi_frames(%p) exit: invalid port specified (port=%d).\n",
pipe, port);
return err;
--
2.34.1