platform: sps: Fix an unsigned comparison that can never be negative
Subsystems (2)
PATCH v2 1/1 platform: sps: Fix an unsigned comparison that can never be negative
From: Rajeshwar R Shinde <[email protected]>
The variable 'mode' is declared as unsigned int in local function. The return value of function amd_pmf_get_pprof_modes(dev) is int and it is stored in the 'mode' variable. Also the value of 'mode' variable is compared with 0 which is signed int by default. Thus redeclaring the variable to signed int.
This fixes warning such as:
drivers/platform/x86/amd/pmf/sps.c:128:5-9:
WARNING: Unsigned expression compared with zero: mode < 0
---v1->v2
changed the commit subject
--- drivers/platform/x86/amd/pmf/sps.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/platform/x86/amd/pmf/sps.c +1 -1
@@ -176,7 +176,7 @@ int amd_pmf_get_pprof_modes(struct amd_pmf_dev *pmf)int amd_pmf_power_slider_update_event (struct amd_pmf_dev *dev) { -u8 mode, flag =0 ; +int mode, flag =0 ;int src; mode =amd_pmf_get_pprof_modes (dev);
Signature · 1 line
2.25.1
Hi,
Quoted 8 lines · On 8/13/23 13:08, [email protected] wrote:
From: Rajeshwar R Shinde <[email protected]>
The variable 'mode' is declared as unsigned int in local function. The return value of function
amd_pmf_get_pprof_modes(dev)is int and it is stored in the 'mode' variable. Also the value of 'mode' variable is compared with 0 which is signed int by default. Thus redeclaring the variable to signed int.
Quoted 5 lines
This fixes warning such as:
drivers/platform/x86/amd/pmf/sps.c:128:5-9:
WARNING: Unsigned expression compared with zero: mode < 0Signed-off-by Rajeshwar R Shinde <[email protected]>
Thank you your patch.
This has already been fixed by a patch which is pending in the pdx86/fixes branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/commit/?h=fixes&id=785c00993dc4c4bb2f7b0f3a3f29c03a6f7aab2e
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=fixes
Regards,
Hans
_______________________________________________
Linux-kernel-mentees mailing list
[email protected]
https://lists.linuxfoundation.org/mailman/listinfo/linux-kernel-mentees