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Message-ID: <1377878801.559.28.camel@sakura.staff.proxad.net> Date: Fri, 30 Aug 2013 18:06:41 +0200 From: Maxime Bizon <mbizon@...ebox.fr> To: Anton Vorontsov <anton@...msg.org>, Colin Cross <ccross@...roid.com>, Kees Cook <keescook@...omium.org>, Tony Luck <tony.luck@...el.com> Cc: linux-kernel@...r.kernel.org Subject: [PATCH] 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@...ebox.fr> --- fs/pstore/ram.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c index a6119f9..03325bc 100644 --- a/fs/pstore/ram.c +++ b/fs/pstore/ram.c @@ -400,11 +400,11 @@ 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; -- 1.7.9.5 -- Maxime -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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