| Message ID | 28644c5e-950e-41cd-8389-67f37b067bdc@kili.mountain (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2] drm/msm/dpu: clean up dpu_kms_get_clk_rate() returns | expand |
On 5/26/2023 4:51 AM, Dan Carpenter wrote: > Static analysis tools complain about the -EINVAL error code being > stored in an unsigned variable. Let's change this to match > the clk_get_rate() function which is type unsigned long and returns > zero on error. > > Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support") > Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> > --- > v2: In v1 I change the type to int which was wrong. This is a different > approach. CC the freedreno list this time too. > > drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 4 ++-- > drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 2 +- > 2 files changed, 3 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c > index 0e7a68714e9e..25e6a15eaf9f 100644 > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c > @@ -979,13 +979,13 @@ static int _dpu_kms_mmu_init(struct dpu_kms *dpu_kms) > return 0; > } > > -u64 dpu_kms_get_clk_rate(struct dpu_kms *dpu_kms, char *clock_name) > +unsigned long dpu_kms_get_clk_rate(struct dpu_kms *dpu_kms, char *clock_name) > { > struct clk *clk; > > clk = msm_clk_bulk_get_clock(dpu_kms->clocks, dpu_kms->num_clocks, clock_name); > if (!clk) > - return -EINVAL; > + return 0; > Currently, the only caller of this API is dpu_encoder_phys_cmd_tearcheck_config which seems to handle <=0 so this change should be fine. Hence Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
On Fri, 26 May 2023 14:51:59 +0300, Dan Carpenter wrote: > Static analysis tools complain about the -EINVAL error code being > stored in an unsigned variable. Let's change this to match > the clk_get_rate() function which is type unsigned long and returns > zero on error. > > Applied, thanks! [1/1] drm/msm/dpu: clean up dpu_kms_get_clk_rate() returns https://gitlab.freedesktop.org/lumag/msm/-/commit/025e3d97867c Best regards,
On 2023-05-26 14:51:59, Dan Carpenter wrote: > Static analysis tools complain about the -EINVAL error code being > stored in an unsigned variable. Let's change this to match > the clk_get_rate() function which is type unsigned long and returns > zero on error. > > Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support") > Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> > --- > v2: In v1 I change the type to int which was wrong. This is a different > approach. CC the freedreno list this time too. Just like v1, should we clean up the <= in dpu_encoder_phys_cmd_tearcheck_config (to just `if (!vsync_hz)`), because doing a <=0 on a u32 has a more limited meaning? > > drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 4 ++-- > drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 2 +- > 2 files changed, 3 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c > index 0e7a68714e9e..25e6a15eaf9f 100644 > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c > @@ -979,13 +979,13 @@ static int _dpu_kms_mmu_init(struct dpu_kms *dpu_kms) > return 0; > } > > -u64 dpu_kms_get_clk_rate(struct dpu_kms *dpu_kms, char *clock_name) > +unsigned long dpu_kms_get_clk_rate(struct dpu_kms *dpu_kms, char *clock_name) > { > struct clk *clk; > > clk = msm_clk_bulk_get_clock(dpu_kms->clocks, dpu_kms->num_clocks, clock_name); > if (!clk) > - return -EINVAL; > + return 0; > > return clk_get_rate(clk); > } > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h > index aca39a4689f4..961918e5a5b3 100644 > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h > @@ -201,6 +201,6 @@ void dpu_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc); > * > * Return: current clock rate Or 0 if this clock is not available/present. - Marijn > */ > -u64 dpu_kms_get_clk_rate(struct dpu_kms *dpu_kms, char *clock_name); > +unsigned long dpu_kms_get_clk_rate(struct dpu_kms *dpu_kms, char *clock_name); > > #endif /* __dpu_kms_H__ */ > -- > 2.39.2 >
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index 0e7a68714e9e..25e6a15eaf9f 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -979,13 +979,13 @@ static int _dpu_kms_mmu_init(struct dpu_kms *dpu_kms) return 0; } -u64 dpu_kms_get_clk_rate(struct dpu_kms *dpu_kms, char *clock_name) +unsigned long dpu_kms_get_clk_rate(struct dpu_kms *dpu_kms, char *clock_name) { struct clk *clk; clk = msm_clk_bulk_get_clock(dpu_kms->clocks, dpu_kms->num_clocks, clock_name); if (!clk) - return -EINVAL; + return 0; return clk_get_rate(clk); } diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h index aca39a4689f4..961918e5a5b3 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h @@ -201,6 +201,6 @@ void dpu_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc); * * Return: current clock rate */ -u64 dpu_kms_get_clk_rate(struct dpu_kms *dpu_kms, char *clock_name); +unsigned long dpu_kms_get_clk_rate(struct dpu_kms *dpu_kms, char *clock_name); #endif /* __dpu_kms_H__ */
Static analysis tools complain about the -EINVAL error code being stored in an unsigned variable. Let's change this to match the clk_get_rate() function which is type unsigned long and returns zero on error. Fixes: 25fdd5933e4c ("drm/msm: Add SDM845 DPU support") Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> --- v2: In v1 I change the type to int which was wrong. This is a different approach. CC the freedreno list this time too. drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 4 ++-- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-)