Messages in this thread | | | Subject | Re: [PATCH][next] drm/amd/display: fix the return of the uninitialized value in ret | From | Harry Wentland <> | Date | Tue, 2 Mar 2021 10:03:13 -0500 |
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On 2021-03-02 9:05 a.m., Colin King wrote: > From: Colin Ian King <colin.king@canonical.com> > > Currently if stream->signal is neither SIGNAL_TYPE_DISPLAY_PORT_MST or > SIGNAL_TYPE_DISPLAY_PORT then variable ret is uninitialized and this is > checked for > 0 at the end of the function. Ret should be initialized, > I believe setting it to zero is a correct default. > > Addresses-Coverity: ("Uninitialized scalar variable") > Fixes: bd0c064c161c ("drm/amd/display: Add return code instead of boolean for future use") > Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Harry
> --- > drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c > index 5159399f8239..5750818db8f6 100644 > --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c > +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c > @@ -530,7 +530,7 @@ bool dm_helpers_dp_write_dsc_enable( > { > uint8_t enable_dsc = enable ? 1 : 0; > struct amdgpu_dm_connector *aconnector; > - uint8_t ret; > + uint8_t ret = 0; > > if (!stream) > return false; >
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