diff options
| author | Dave Airlie <airlied@redhat.com> | 2013-04-16 13:36:00 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2013-04-16 13:36:00 +1000 |
| commit | 62c8ba7c58e4163f975c5f8b5a3dd5f306a2deda (patch) | |
| tree | 0172a68cb13daa74b4c7003946c44d19076b54ee /drivers/gpu/drm | |
| parent | 6d01f1f54c01877baad11389291c1aeab9c11e0f (diff) | |
drm/qxl: fix smatch warnings
drivers/gpu/drm/qxl/qxl_display.c:99 qxl_alloc_client_monitors_config() error: dereferencing freed memory 'qdev->client_monitors_config'
drivers/gpu/drm/qxl/qxl_object.c:66 qxl_ttm_placement_from_domain() warn: bitwise AND condition is false here
drivers/gpu/drm/qxl/qxl_ioctl.c:353 qxl_clientcap_ioctl() warn: buffer overflow 'qdev->rom->client_capabilities' 58 <= 58
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/qxl/qxl_display.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/qxl/qxl_ioctl.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/qxl/qxl_object.c | 6 |
3 files changed, 5 insertions, 4 deletions
diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c index 567a5328cfc..fcfd4436cee 100644 --- a/drivers/gpu/drm/qxl/qxl_display.c +++ b/drivers/gpu/drm/qxl/qxl_display.c @@ -84,6 +84,7 @@ void qxl_alloc_client_monitors_config(struct qxl_device *qdev, unsigned count) if (qdev->client_monitors_config && count > qdev->client_monitors_config->count) { kfree(qdev->client_monitors_config); + qdev->client_monitors_config = NULL; } if (!qdev->client_monitors_config) { qdev->client_monitors_config = kzalloc( diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c index cec61722258..04b64f9cbfd 100644 --- a/drivers/gpu/drm/qxl/qxl_ioctl.c +++ b/drivers/gpu/drm/qxl/qxl_ioctl.c @@ -347,7 +347,7 @@ static int qxl_clientcap_ioctl(struct drm_device *dev, void *data, if (qdev->pdev->revision < 4) return -ENOSYS; - if (byte > 58) + if (byte >= 58) return -ENOSYS; if (qdev->rom->client_capabilities[byte] & (1 << idx)) diff --git a/drivers/gpu/drm/qxl/qxl_object.c b/drivers/gpu/drm/qxl/qxl_object.c index 51efb94a5de..d9b12e7bc6e 100644 --- a/drivers/gpu/drm/qxl/qxl_object.c +++ b/drivers/gpu/drm/qxl/qxl_object.c @@ -59,11 +59,11 @@ void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain) qbo->placement.lpfn = 0; qbo->placement.placement = qbo->placements; qbo->placement.busy_placement = qbo->placements; - if (domain & QXL_GEM_DOMAIN_VRAM) + if (domain == QXL_GEM_DOMAIN_VRAM) qbo->placements[c++] = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_VRAM; - if (domain & QXL_GEM_DOMAIN_SURFACE) + if (domain == QXL_GEM_DOMAIN_SURFACE) qbo->placements[c++] = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_PRIV0; - if (domain & QXL_GEM_DOMAIN_CPU) + if (domain == QXL_GEM_DOMAIN_CPU) qbo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM; if (!c) qbo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM; |