The issue here is that we allocate "data" and then set
"data = PTR_ALIGN(data, 8);" and then we free the aligned pointer
instead of the original pointer.
kmalloc() pointers are already ARCH_SLAB_MINALIGN aligned which is 8 or
more on everything except certain Xtensa variants. We decided that if
the Xtensa people ever notice a bug here then we'll tell them the bug is
on their side. ;)
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
v2: Instead of saving the original pointer, just remove the ALIGN()s
diff --git a/drivers/net/wireless/rsi/rsi_91x_sdio.c b/drivers/net/wireless/rsi/rsi_91x_sdio.c
index d76e69c0beaa..8ef00582c6ea 100644
--- a/drivers/net/wireless/rsi/rsi_91x_sdio.c
+++ b/drivers/net/wireless/rsi/rsi_91x_sdio.c
@@ -660,8 +660,6 @@ static int rsi_sdio_master_reg_read(struct rsi_hw *adapter, u32 addr,
if (!data)
return -ENOMEM;
- data = PTR_ALIGN(data, 8);
-
ms_addr = (addr >> 16);
status = rsi_sdio_master_access_msword(adapter, ms_addr);
if (status < 0) {
@@ -724,8 +722,6 @@ static int rsi_sdio_master_reg_write(struct rsi_hw *adapter,
if (!data_aligned)
return -ENOMEM;
- data_aligned = PTR_ALIGN(data_aligned, 8);
-
if (size == 2) {
*data_aligned = ((data << 16) | (data & 0xFFFF));
} else if (size == 1) {
