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Subject[PATCH] intel_scu_ipc: fix signedness bug
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Date
busy_loop() returns negative error code, thus change err variable
from u32 to int to properly propagate correct error code.

Also remove unneeded initialization for err and i variables.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
drivers/platform/x86/intel_scu_ipc.c | 7 +++----
1 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index 41a9e34..50f5cf3 100644
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -160,7 +160,7 @@ static int pwr_reg_rdwr(u16 *addr, u8 *data, u32 count, u32 op, u32 id)
{
int i, nc, bytes, d;
u32 offset = 0;
- u32 err = 0;
+ int err;
u8 cbuf[IPC_WWBUF_SIZE] = { };
u32 *wbuf = (u32 *)&cbuf;

@@ -403,7 +403,7 @@ EXPORT_SYMBOL(intel_scu_ipc_update_register);
*/
int intel_scu_ipc_simple_command(int cmd, int sub)
{
- u32 err = 0;
+ int err;

mutex_lock(&ipclock);
if (ipcdev.pdev == NULL) {
@@ -433,8 +433,7 @@ EXPORT_SYMBOL(intel_scu_ipc_simple_command);
int intel_scu_ipc_command(int cmd, int sub, u32 *in, int inlen,
u32 *out, int outlen)
{
- u32 err = 0;
- int i = 0;
+ int err, i;

mutex_lock(&ipclock);
if (ipcdev.pdev == NULL) {
--
1.7.2




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