The "io_virt_addr" variable is a u32 pointer and it should be
incremented by one instead of four. The current code will dump bogus
data and read beyond the end of the buffer.
Fixes: 69a03e36c711 ("media: atomisp: get rid of an iomem abstraction layer")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
drivers/staging/media/atomisp/pci/atomisp_cmd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/staging/media/atomisp/pci/atomisp_cmd.c b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
index 7b936e5a5f03..6faf223c6d20 100644
--- a/drivers/staging/media/atomisp/pci/atomisp_cmd.c
+++ b/drivers/staging/media/atomisp/pci/atomisp_cmd.c
@@ -682,7 +682,7 @@ void dump_sp_dmem(struct atomisp_device *isp, unsigned int addr,
do {
data = *io_virt_addr;
dev_dbg(isp->dev, "%s, \t [0x%x]:0x%x\n", __func__, addr, data);
- io_virt_addr += sizeof(u32);
+ io_virt_addr++;
size32 -= 1;
} while (size32 > 0);
}
--
2.27.0
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