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authorArnd Bergmann <arnd@arndb.de>2013-05-06 23:38:00 +0200
committerArnd Bergmann <arnd@arndb.de>2013-05-06 23:38:00 +0200
commit4183bef2e093a2f0aab45f2d5fed82b0e02aeacf (patch)
treee84c484db3746a0f3ead0fb7a2bb9e5a42b89e85 /drivers/gpu/drm/drm_fops.c
parent662478d060a39b8faf2b1fe2fbbb212556c2e052 (diff)
parent775c4f66fd855e68a98fc5049003810fe98e2e20 (diff)
Merge branch 'late/dt' into next/dt2
This is support for the ARM Chromebook, originally scheduled as a "late" pull request. Since it's already late now, we can combine this into the existing next/dt2 branch. * late/dt: ARM: exynos: dts: cros5250: add EC device ARM: dts: Add sbs-battery for exynos5250-snow ARM: dts: Add i2c-arbitrator bus for exynos5250-snow ARM: dts: Add chip-id controller node on Exynos4/5 SoC ARM: EXYNOS: Create virtual I/O mapping for Chip-ID controller using device tree
Diffstat (limited to 'drivers/gpu/drm/drm_fops.c')
-rw-r--r--drivers/gpu/drm/drm_fops.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 13fdcd10a60..429e07d0b0f 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -123,6 +123,7 @@ int drm_open(struct inode *inode, struct file *filp)
int retcode = 0;
int need_setup = 0;
struct address_space *old_mapping;
+ struct address_space *old_imapping;
minor = idr_find(&drm_minors_idr, minor_id);
if (!minor)
@@ -137,6 +138,7 @@ int drm_open(struct inode *inode, struct file *filp)
if (!dev->open_count++)
need_setup = 1;
mutex_lock(&dev->struct_mutex);
+ old_imapping = inode->i_mapping;
old_mapping = dev->dev_mapping;
if (old_mapping == NULL)
dev->dev_mapping = &inode->i_data;
@@ -159,8 +161,8 @@ int drm_open(struct inode *inode, struct file *filp)
err_undo:
mutex_lock(&dev->struct_mutex);
- filp->f_mapping = old_mapping;
- inode->i_mapping = old_mapping;
+ filp->f_mapping = old_imapping;
+ inode->i_mapping = old_imapping;
iput(container_of(dev->dev_mapping, struct inode, i_data));
dev->dev_mapping = old_mapping;
mutex_unlock(&dev->struct_mutex);