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| author | Mark Brown <broonie@kernel.org> | 2015-09-04 19:16:39 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-09-04 19:16:39 +0300 |
| commit | 04782ca20a8ebb5acf0c35756a38964ae5ea7321 (patch) | |
| tree | ebf475793bb17444d3a1e21974617f27e8ff3a4b /fs/proc/base.c | |
| parent | d5b98eb12420ce856caaf57dc5256eedc56a3747 (diff) | |
| parent | 17649c90ff4c5246bb4babf6260029968a6d119d (diff) | |
| download | linux-04782ca20a8ebb5acf0c35756a38964ae5ea7321.tar.xz | |
Merge branch 'topic/smbus-block' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap into regmap-core
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. |