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Diffstat (limited to 'fs/proc/task_mmu.c')
-rw-r--r--fs/proc/task_mmu.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index b9e4fbbdf6e6..27972c0749e7 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -212,8 +212,8 @@ static int proc_maps_open(struct inode *inode, struct file *file,
priv->inode = inode;
priv->mm = proc_mem_open(inode, PTRACE_MODE_READ);
- if (IS_ERR(priv->mm)) {
- int err = PTR_ERR(priv->mm);
+ if (IS_ERR_OR_NULL(priv->mm)) {
+ int err = priv->mm ? PTR_ERR(priv->mm) : -ESRCH;
seq_release_private(inode, file);
return err;
@@ -1325,8 +1325,8 @@ static int smaps_rollup_open(struct inode *inode, struct file *file)
priv->inode = inode;
priv->mm = proc_mem_open(inode, PTRACE_MODE_READ);
- if (IS_ERR(priv->mm)) {
- ret = PTR_ERR(priv->mm);
+ if (IS_ERR_OR_NULL(priv->mm)) {
+ ret = priv->mm ? PTR_ERR(priv->mm) : -ESRCH;
single_release(inode, file);
goto out_free;
@@ -2069,8 +2069,8 @@ static int pagemap_open(struct inode *inode, struct file *file)
struct mm_struct *mm;
mm = proc_mem_open(inode, PTRACE_MODE_READ);
- if (IS_ERR(mm))
- return PTR_ERR(mm);
+ if (IS_ERR_OR_NULL(mm))
+ return mm ? PTR_ERR(mm) : -ESRCH;
file->private_data = mm;
return 0;
}