From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C896318CC1A; Tue, 10 Sep 2024 10:15:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725963300; cv=none; b=BB6jBMXvSM5/U/UCwGbxAJWBE9VAl6ejM77Wzs4VMChff+jNmaF2j1wzCh0eERJ+i182zK5Kg7kzKp6KPskFoJ5mH10m9w+VTcnWKWyNXjq5rh56L32uzzsx19V6EXIjTiXVbKOW7UWT2GhBzR0I0nmScxhKaEovD9Nk4DYktdc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725963300; c=relaxed/simple; bh=MwemvVmrNKeknoLp5cKwGyXP0du+k/LFQ5FdwA0d/a8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=oMldkNx4lAblRCExPOVvOc/45ySNix7x5HZlDV0UpnM+TX23H42aBHKmEVYdJEiXtQo/Hk6R1631m9hJlRIxrMt8ZfrBYbFBI/kNXDpv8QM5gUTUh1wuGBgEByHzwK023x5njBQ8MAnb34GbFrCgO+JCbraQYKG45O7pvYDPjYc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=oT5KfW+h; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="oT5KfW+h" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4E6E5C4CEC6; Tue, 10 Sep 2024 10:15:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1725963300; bh=MwemvVmrNKeknoLp5cKwGyXP0du+k/LFQ5FdwA0d/a8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=oT5KfW+hpu8m6amvQ3oehjn6SXCF55XEqmKXLOvQ2CKZmDaA3jEVV72lfe7lUU3Db fus+DlAZ+wI8FWxpXB3mtd5t03gSK8gRleTbBWuHD1pLHUUOJuGLucaDklleq1/X7x c0Vywh1wIRXwJ3/aug/8DaPLmpMW+wbCUVrFjduo= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Tim Huang , =?UTF-8?q?Christian=20K=C3=B6nig?= , Alex Deucher , Sasha Levin Subject: [PATCH 5.15 011/214] drm/amd/pm: fix uninitialized variable warning for smu8_hwmgr Date: Tue, 10 Sep 2024 11:30:33 +0200 Message-ID: <20240910092559.193134614@linuxfoundation.org> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240910092558.714365667@linuxfoundation.org> References: <20240910092558.714365667@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Tim Huang [ Upstream commit 86df36b934640866eb249a4488abb148b985a0d9 ] Clear warnings that using uninitialized value level when fails to get the value from SMU. Signed-off-by: Tim Huang Reviewed-by: Christian König Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin --- .../gpu/drm/amd/pm/powerplay/hwmgr/smu8_hwmgr.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu8_hwmgr.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu8_hwmgr.c index f0f8ebffd9f2..c1887c21c7ab 100644 --- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu8_hwmgr.c +++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu8_hwmgr.c @@ -584,6 +584,7 @@ static int smu8_init_uvd_limit(struct pp_hwmgr *hwmgr) hwmgr->dyn_state.uvd_clock_voltage_dependency_table; unsigned long clock = 0; uint32_t level; + int ret; if (NULL == table || table->count <= 0) return -EINVAL; @@ -591,7 +592,9 @@ static int smu8_init_uvd_limit(struct pp_hwmgr *hwmgr) data->uvd_dpm.soft_min_clk = 0; data->uvd_dpm.hard_min_clk = 0; - smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMaxUvdLevel, &level); + ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMaxUvdLevel, &level); + if (ret) + return ret; if (level < table->count) clock = table->entries[level].vclk; @@ -611,6 +614,7 @@ static int smu8_init_vce_limit(struct pp_hwmgr *hwmgr) hwmgr->dyn_state.vce_clock_voltage_dependency_table; unsigned long clock = 0; uint32_t level; + int ret; if (NULL == table || table->count <= 0) return -EINVAL; @@ -618,7 +622,9 @@ static int smu8_init_vce_limit(struct pp_hwmgr *hwmgr) data->vce_dpm.soft_min_clk = 0; data->vce_dpm.hard_min_clk = 0; - smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMaxEclkLevel, &level); + ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMaxEclkLevel, &level); + if (ret) + return ret; if (level < table->count) clock = table->entries[level].ecclk; @@ -638,6 +644,7 @@ static int smu8_init_acp_limit(struct pp_hwmgr *hwmgr) hwmgr->dyn_state.acp_clock_voltage_dependency_table; unsigned long clock = 0; uint32_t level; + int ret; if (NULL == table || table->count <= 0) return -EINVAL; @@ -645,7 +652,9 @@ static int smu8_init_acp_limit(struct pp_hwmgr *hwmgr) data->acp_dpm.soft_min_clk = 0; data->acp_dpm.hard_min_clk = 0; - smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMaxAclkLevel, &level); + ret = smum_send_msg_to_smc(hwmgr, PPSMC_MSG_GetMaxAclkLevel, &level); + if (ret) + return ret; if (level < table->count) clock = table->entries[level].acpclk; -- 2.43.0