Merge branch 'drm-coverity-fixes' of git://people.freedesktop.org/~danvet/drm into drm-next
bunch of coverity fixes all minor.
* 'drm-coverity-fixes' of git://people.freedesktop.org/~danvet/drm:
drm: Fix error handling in drm_master_create
drm/i2c/tda998x: Fix signed overflow issue
drm/bochs: Remove unecessary NULL check in gem_free
drm/bochs: Remove unnecessary NULL check in bo_unref
drm/udl: Initialize ret in udl_driver_load
drm/via: Remove unecessary NULL check
drm/ast: Remove unecessary NULL check in gem_free
drm/ast: Remove unnecessary NULL check in bo_unref
drm/cirrus: Remove unecessary NULL check in gem_free
drm/cirrus: Remove unnecessary NULL check in bo_unref
drm/mgag200: Remove unecessary NULL check in gem_free
drm/mgag200: Remove unecessary NULL check in bo_unref
diff --git a/drivers/gpu/drm/ast/ast_main.c b/drivers/gpu/drm/ast/ast_main.c
index 50535fd..01bf9e7 100644
--- a/drivers/gpu/drm/ast/ast_main.c
+++ b/drivers/gpu/drm/ast/ast_main.c
@@ -411,16 +411,13 @@
tbo = &((*bo)->bo);
ttm_bo_unref(&tbo);
- if (tbo == NULL)
- *bo = NULL;
-
+ *bo = NULL;
}
+
void ast_gem_free_object(struct drm_gem_object *obj)
{
struct ast_bo *ast_bo = gem_to_ast_bo(obj);
- if (!ast_bo)
- return;
ast_bo_unref(&ast_bo);
}
diff --git a/drivers/gpu/drm/bochs/bochs_mm.c b/drivers/gpu/drm/bochs/bochs_mm.c
index f488be5..b9a695d 100644
--- a/drivers/gpu/drm/bochs/bochs_mm.c
+++ b/drivers/gpu/drm/bochs/bochs_mm.c
@@ -434,17 +434,13 @@
tbo = &((*bo)->bo);
ttm_bo_unref(&tbo);
- if (tbo == NULL)
- *bo = NULL;
-
+ *bo = NULL;
}
void bochs_gem_free_object(struct drm_gem_object *obj)
{
struct bochs_bo *bochs_bo = gem_to_bochs_bo(obj);
- if (!bochs_bo)
- return;
bochs_bo_unref(&bochs_bo);
}
diff --git a/drivers/gpu/drm/cirrus/cirrus_main.c b/drivers/gpu/drm/cirrus/cirrus_main.c
index 4b0170c..99c1983 100644
--- a/drivers/gpu/drm/cirrus/cirrus_main.c
+++ b/drivers/gpu/drm/cirrus/cirrus_main.c
@@ -264,17 +264,13 @@
tbo = &((*bo)->bo);
ttm_bo_unref(&tbo);
- if (tbo == NULL)
- *bo = NULL;
-
+ *bo = NULL;
}
void cirrus_gem_free_object(struct drm_gem_object *obj)
{
struct cirrus_bo *cirrus_bo = gem_to_cirrus_bo(obj);
- if (!cirrus_bo)
- return;
cirrus_bo_unref(&cirrus_bo);
}
diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index 4c24c3a..bfa6cb9 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -128,7 +128,10 @@
kref_init(&master->refcount);
spin_lock_init(&master->lock.spinlock);
init_waitqueue_head(&master->lock.lock_queue);
- drm_ht_create(&master->magiclist, DRM_MAGIC_HASH_ORDER);
+ if (drm_ht_create(&master->magiclist, DRM_MAGIC_HASH_ORDER)) {
+ kfree(master);
+ return NULL;
+ }
INIT_LIST_HEAD(&master->magicfree);
master->minor = minor;
diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c
index 48af5ca..240c331 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -568,11 +568,11 @@
static uint8_t tda998x_cksum(uint8_t *buf, size_t bytes)
{
- uint8_t sum = 0;
+ int sum = 0;
while (bytes--)
- sum += *buf++;
- return (255 - sum) + 1;
+ sum -= *buf++;
+ return sum;
}
#define HB(x) (x)
diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
index 26868e5..f6b283b 100644
--- a/drivers/gpu/drm/mgag200/mgag200_main.c
+++ b/drivers/gpu/drm/mgag200/mgag200_main.c
@@ -322,17 +322,13 @@
tbo = &((*bo)->bo);
ttm_bo_unref(&tbo);
- if (tbo == NULL)
- *bo = NULL;
-
+ *bo = NULL;
}
void mgag200_gem_free_object(struct drm_gem_object *obj)
{
struct mgag200_bo *mgag200_bo = gem_to_mga_bo(obj);
- if (!mgag200_bo)
- return;
mgag200_bo_unref(&mgag200_bo);
}
diff --git a/drivers/gpu/drm/udl/udl_main.c b/drivers/gpu/drm/udl/udl_main.c
index f5ae574..e1038a9 100644
--- a/drivers/gpu/drm/udl/udl_main.c
+++ b/drivers/gpu/drm/udl/udl_main.c
@@ -294,6 +294,7 @@
dev->dev_private = udl;
if (!udl_parse_vendor_descriptor(dev, dev->usbdev)) {
+ ret = -ENODEV;
DRM_ERROR("firmware not recognized. Assume incompatible device\n");
goto err;
}
diff --git a/drivers/gpu/drm/via/via_mm.c b/drivers/gpu/drm/via/via_mm.c
index 9278891..d70b1e1 100644
--- a/drivers/gpu/drm/via/via_mm.c
+++ b/drivers/gpu/drm/via/via_mm.c
@@ -79,7 +79,7 @@
/* Linux specific until context tracking code gets ported to BSD */
/* Last context, perform cleanup */
- if (list_is_singular(&dev->ctxlist) && dev->dev_private) {
+ if (list_is_singular(&dev->ctxlist)) {
DRM_DEBUG("Last Context\n");
drm_irq_uninstall(dev);
via_cleanup_futex(dev_priv);