diff options
Diffstat (limited to 'fs/proc')
-rw-r--r-- | fs/proc/base.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c index 0c2c50cc2cca..4ede550517a6 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c | |||
@@ -894,20 +894,20 @@ static ssize_t mem_write(struct file * file, const char __user *buf, | |||
894 | if (!task) | 894 | if (!task) |
895 | goto out_no_task; | 895 | goto out_no_task; |
896 | 896 | ||
897 | copied = -ENOMEM; | ||
898 | page = (char *)__get_free_page(GFP_TEMPORARY); | ||
899 | if (!page) | ||
900 | goto out_task; | ||
901 | |||
897 | mm = check_mem_permission(task); | 902 | mm = check_mem_permission(task); |
898 | copied = PTR_ERR(mm); | 903 | copied = PTR_ERR(mm); |
899 | if (IS_ERR(mm)) | 904 | if (IS_ERR(mm)) |
900 | goto out_task; | 905 | goto out_free; |
901 | 906 | ||
902 | copied = -EIO; | 907 | copied = -EIO; |
903 | if (file->private_data != (void *)((long)current->self_exec_id)) | 908 | if (file->private_data != (void *)((long)current->self_exec_id)) |
904 | goto out_mm; | 909 | goto out_mm; |
905 | 910 | ||
906 | copied = -ENOMEM; | ||
907 | page = (char *)__get_free_page(GFP_TEMPORARY); | ||
908 | if (!page) | ||
909 | goto out_mm; | ||
910 | |||
911 | copied = 0; | 911 | copied = 0; |
912 | while (count > 0) { | 912 | while (count > 0) { |
913 | int this_len, retval; | 913 | int this_len, retval; |
@@ -929,9 +929,11 @@ static ssize_t mem_write(struct file * file, const char __user *buf, | |||
929 | count -= retval; | 929 | count -= retval; |
930 | } | 930 | } |
931 | *ppos = dst; | 931 | *ppos = dst; |
932 | free_page((unsigned long) page); | 932 | |
933 | out_mm: | 933 | out_mm: |
934 | mmput(mm); | 934 | mmput(mm); |
935 | out_free: | ||
936 | free_page((unsigned long) page); | ||
935 | out_task: | 937 | out_task: |
936 | put_task_struct(task); | 938 | put_task_struct(task); |
937 | out_no_task: | 939 | out_no_task: |