'res' is reassigned several times in the function and if we 'goto
error_unmap', its value is not the returned value of 'request_mem_region()'
anymore.
Introduce a new 'struct resource *' variable (i.e. res2) to keep a pointer
to the right resource, if needed in the error handling path.
Fixes: 4b4eda001704 ("Staging: media: Unmap and release region obtained by ioremap_nocache")
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
drivers/staging/media/davinci_vpfe/dm365_ipipe.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/media/davinci_vpfe/dm365_ipipe.c b/drivers/staging/media/davinci_vpfe/dm365_ipipe.c
index 6a3434cebd79..8d2d3f8edc07 100644
--- a/drivers/staging/media/davinci_vpfe/dm365_ipipe.c
+++ b/drivers/staging/media/davinci_vpfe/dm365_ipipe.c
@@ -1791,7 +1791,7 @@ vpfe_ipipe_init(struct vpfe_ipipe_device *ipipe, struct platform_device *pdev)
struct v4l2_subdev *sd = &ipipe->subdev;
struct media_entity *me = &sd->entity;
static resource_size_t res_len;
- struct resource *res;
+ struct resource *res, *res2;
res = platform_get_resource(pdev, IORESOURCE_MEM, 4);
if (!res)
@@ -1805,10 +1805,10 @@ vpfe_ipipe_init(struct vpfe_ipipe_device *ipipe, struct platform_device *pdev)
if (!ipipe->base_addr)
goto error_release;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 6);
- if (!res)
+ res2 = platform_get_resource(pdev, IORESOURCE_MEM, 6);
+ if (!res2)
goto error_unmap;
- ipipe->isp5_base_addr = ioremap_nocache(res->start, res_len);
+ ipipe->isp5_base_addr = ioremap_nocache(res2->start, res_len);
if (!ipipe->isp5_base_addr)
goto error_unmap;
--
2.11.0
--
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