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| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-08-06 15:27:09 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-08-06 15:27:09 +0300 |
| commit | 06059d5090118b047c5b6a621c8b57a068f7ce2c (patch) | |
| tree | 47431df1c04c02dfb7ecea479321142c56ad17cc /fs/proc/base.c | |
| parent | 80aa93128653c5f2502053c0d9740b336d975667 (diff) | |
| parent | 8c10342cb48f3140d9abeadcfd2fa6625d447282 (diff) | |
| download | linux-06059d5090118b047c5b6a621c8b57a068f7ce2c.tar.xz | |
Merge tag 'topic/drm-misc-2015-07-28' into drm-intel-next-queued
We need a few core drm patches to be able to merge Maarten's series to
convert DPMS over to atomic.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'fs/proc/base.c')
| -rw-r--r-- | fs/proc/base.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/proc/base.c b/fs/proc/base.c index 87782e874b6a..aa50d1ac28fc 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -243,6 +243,11 @@ static ssize_t proc_pid_cmdline_read(struct file *file, char __user *buf, len1 = arg_end - arg_start; len2 = env_end - env_start; + /* Empty ARGV. */ + if (len1 == 0) { + rv = 0; + goto out_free_page; + } /* * Inherently racy -- command line shares address space * with code and data. |