diff options
| author | Maxime Bizon <mbizon@freebox.fr> | 2013-08-30 18:06:41 +0200 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2013-08-30 15:57:01 -0700 |
| commit | 3bd11cf56e4d9c9a79c0c1a4ebe381c674ec9709 (patch) | |
| tree | d696c550232d2b6e5a279675a28398cb679590fb /fs/pstore | |
| parent | 3f8f80f0cfebab185b6fe599c53b63e7e8ae02c9 (diff) | |
| download | lwn-3bd11cf56e4d9c9a79c0c1a4ebe381c674ec9709.tar.gz lwn-3bd11cf56e4d9c9a79c0c1a4ebe381c674ec9709.zip | |
pstore/ram: (really) fix undefined usage of rounddown_pow_of_two
Previous attempt to fix was b042e47491ba5f487601b5141a3f1d8582304170
Suggested use of is_power_of_2() was bogus because is_power_of_2(0) is
false (documented behaviour).
Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'fs/pstore')
| -rw-r--r-- | fs/pstore/ram.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c index 4027c2065842..fa8cef2cca3a 100644 --- a/fs/pstore/ram.c +++ b/fs/pstore/ram.c @@ -421,11 +421,11 @@ static int ramoops_probe(struct platform_device *pdev) goto fail_out; } - if (!is_power_of_2(pdata->record_size)) + if (pdata->record_size && !is_power_of_2(pdata->record_size)) pdata->record_size = rounddown_pow_of_two(pdata->record_size); - if (!is_power_of_2(pdata->console_size)) + if (pdata->console_size && !is_power_of_2(pdata->console_size)) pdata->console_size = rounddown_pow_of_two(pdata->console_size); - if (!is_power_of_2(pdata->ftrace_size)) + if (pdata->ftrace_size && !is_power_of_2(pdata->ftrace_size)) pdata->ftrace_size = rounddown_pow_of_two(pdata->ftrace_size); cxt->dump_read_cnt = 0; |