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From deee3b06cc1912e53df6410594d1d17688c03278 Mon Sep 17 00:00:00 2001
From: Navid Emamdoost <navid.emamdoost@gmail.com>
Date: Tue, 1 Oct 2019 22:46:07 -0500
Subject: [PATCH 4024/4256] drm/amdgpu: fix multiple memory leaks in
acp_hw_init
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
In acp_hw_init there are some allocations that needs to be released in
case of failure:
1- adev->acp.acp_genpd should be released if any allocation attemp for
adev->acp.acp_cell, adev->acp.acp_res or i2s_pdata fails.
2- all of those allocations should be released if
mfd_add_hotplug_devices or pm_genpd_add_device fail.
3- Release is needed in case of time out values expire.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c | 34 ++++++++++++++++---------
1 file changed, 22 insertions(+), 12 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
index 0a4fba196b84..7f3538710d1f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c
@@ -188,7 +188,7 @@ static int acp_hw_init(void *handle)
u32 val = 0;
u32 count = 0;
struct device *dev;
- struct i2s_platform_data *i2s_pdata;
+ struct i2s_platform_data *i2s_pdata = NULL;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
@@ -230,20 +230,21 @@ static int acp_hw_init(void *handle)
adev->acp.acp_cell = kcalloc(ACP_DEVS, sizeof(struct mfd_cell),
GFP_KERNEL);
- if (adev->acp.acp_cell == NULL)
- return -ENOMEM;
+ if (adev->acp.acp_cell == NULL) {
+ r = -ENOMEM;
+ goto failure;
+ }
adev->acp.acp_res = kcalloc(5, sizeof(struct resource), GFP_KERNEL);
if (adev->acp.acp_res == NULL) {
- kfree(adev->acp.acp_cell);
- return -ENOMEM;
+ r = -ENOMEM;
+ goto failure;
}
i2s_pdata = kcalloc(3, sizeof(struct i2s_platform_data), GFP_KERNEL);
if (i2s_pdata == NULL) {
- kfree(adev->acp.acp_res);
- kfree(adev->acp.acp_cell);
- return -ENOMEM;
+ r = -ENOMEM;
+ goto failure;
}
switch (adev->asic_type) {
@@ -340,14 +341,14 @@ static int acp_hw_init(void *handle)
r = mfd_add_hotplug_devices(adev->acp.parent, adev->acp.acp_cell,
ACP_DEVS);
if (r)
- return r;
+ goto failure;
for (i = 0; i < ACP_DEVS ; i++) {
dev = get_mfd_cell_dev(adev->acp.acp_cell[i].name, i);
r = pm_genpd_add_device(&adev->acp.acp_genpd->gpd, dev);
if (r) {
dev_err(dev, "Failed to add dev to genpd\n");
- return r;
+ goto failure;
}
}
@@ -366,7 +367,8 @@ static int acp_hw_init(void *handle)
break;
if (--count == 0) {
dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
- return -ETIMEDOUT;
+ r = -ETIMEDOUT;
+ goto failure;
}
udelay(100);
}
@@ -383,7 +385,8 @@ static int acp_hw_init(void *handle)
break;
if (--count == 0) {
dev_err(&adev->pdev->dev, "Failed to reset ACP\n");
- return -ETIMEDOUT;
+ r = -ETIMEDOUT;
+ goto failure;
}
udelay(100);
}
@@ -392,6 +395,13 @@ static int acp_hw_init(void *handle)
val &= ~ACP_SOFT_RESET__SoftResetAud_MASK;
cgs_write_register(adev->acp.cgs_device, mmACP_SOFT_RESET, val);
return 0;
+
+failure:
+ kfree(i2s_pdata);
+ kfree(adev->acp.acp_res);
+ kfree(adev->acp.acp_cell);
+ kfree(adev->acp.acp_genpd);
+ return r;
}
/**
--
2.17.1
|
