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| author | Jonas Gorski <jonas.gorski@gmail.com> | 2017-07-18 12:17:26 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2017-09-06 12:35:21 +0200 |
| commit | 585e0e9d02a690c29932b2fc0789835c7b91d448 (patch) | |
| tree | 8f378cdc069bb5e8ee6296c6af5ddc6aa5feb5c8 /arch/mips | |
| parent | eebc6056d3d8af0f163a077621f79e459c656fa2 (diff) | |
| download | lwn-585e0e9d02a690c29932b2fc0789835c7b91d448.tar.gz lwn-585e0e9d02a690c29932b2fc0789835c7b91d448.zip | |
MIPS: AR7: allow NULL clock for clk_get_rate
Make the behaviour of clk_get_rate consistent with common clk's
clk_get_rate by accepting NULL clocks as parameter. Some device
drivers rely on this, and will cause an OOPS otherwise.
Fixes: 780019ddf02f ("MIPS: AR7: Implement clock API")
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Reported-by: Mathias Kresin <dev@kresin.me>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/16775/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/ar7/clock.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/mips/ar7/clock.c b/arch/mips/ar7/clock.c index dda422a0f36c..0137656107a9 100644 --- a/arch/mips/ar7/clock.c +++ b/arch/mips/ar7/clock.c @@ -430,6 +430,9 @@ EXPORT_SYMBOL(clk_disable); unsigned long clk_get_rate(struct clk *clk) { + if (!clk) + return 0; + return clk->rate; } EXPORT_SYMBOL(clk_get_rate); |