Message ID | 20230727014315.51375-1-yang.lee@linux.alibaba.com (mailing list archive) |
---|---|
State | Accepted, archived |
Headers | show |
Series | [-next] platform/x86/amd/pmf: Fix unsigned comparison with less than zero | expand |
Hi, On 7/27/23 03:43, Yang Li wrote: > The return value from the call to amd_pmf_get_pprof_modes() is int. > However, the return value is being assigned to an unsigned char > variable 'mode', so making 'mode' an int. > > silence the warning: > ./drivers/platform/x86/amd/pmf/sps.c:183:5-9: WARNING: Unsigned expression compared with zero: mode < 0 > > Reported-by: Abaci Robot <abaci@linux.alibaba.com> > Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=5995 > Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> Thank you for your patch, I've applied this patch to my fixes branch: https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=fixes Note it will show up in my fixes branch once I've pushed my local branch there, which might take a while. I will include this patch in my next fixes pull-req to Linus for the current kernel development cycle. Regards, Hans > --- > drivers/platform/x86/amd/pmf/sps.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/platform/x86/amd/pmf/sps.c b/drivers/platform/x86/amd/pmf/sps.c > index ab69d517a36a..a70e67749be3 100644 > --- a/drivers/platform/x86/amd/pmf/sps.c > +++ b/drivers/platform/x86/amd/pmf/sps.c > @@ -176,7 +176,8 @@ 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; > + u8 flag = 0; > + int mode; > int src; > > mode = amd_pmf_get_pprof_modes(dev);
diff --git a/drivers/platform/x86/amd/pmf/sps.c b/drivers/platform/x86/amd/pmf/sps.c index ab69d517a36a..a70e67749be3 100644 --- a/drivers/platform/x86/amd/pmf/sps.c +++ b/drivers/platform/x86/amd/pmf/sps.c @@ -176,7 +176,8 @@ 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; + u8 flag = 0; + int mode; int src; mode = amd_pmf_get_pprof_modes(dev);
The return value from the call to amd_pmf_get_pprof_modes() is int. However, the return value is being assigned to an unsigned char variable 'mode', so making 'mode' an int. silence the warning: ./drivers/platform/x86/amd/pmf/sps.c:183:5-9: WARNING: Unsigned expression compared with zero: mode < 0 Reported-by: Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=5995 Signed-off-by: Yang Li <yang.lee@linux.alibaba.com> --- drivers/platform/x86/amd/pmf/sps.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)