diff options
| author | Roel Kluin <roel.kluin@gmail.com> | 2009-11-01 16:46:26 +0300 |
|---|---|---|
| committer | Jesper Nilsson <jesper.nilsson@axis.com> | 2009-11-03 16:11:53 +0300 |
| commit | f25234f1c21ad9878bd38719381e13f4ef1990ce (patch) | |
| tree | cd01c222db18d498223d33225f1acf6cb417626a /arch/cris/arch-v32/mach-fs | |
| parent | 1836d95928a0f41ada0cbb2a6c4e46b027db9491 (diff) | |
| download | linux-f25234f1c21ad9878bd38719381e13f4ef1990ce.tar.xz | |
CRIS v32: Should index be positive?
`port' is used as index for writing to pins during
allocation/deallocation. It should be positive.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Diffstat (limited to 'arch/cris/arch-v32/mach-fs')
| -rw-r--r-- | arch/cris/arch-v32/mach-fs/pinmux.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/cris/arch-v32/mach-fs/pinmux.c b/arch/cris/arch-v32/mach-fs/pinmux.c index d722ad9ae626..38f29eec14a6 100644 --- a/arch/cris/arch-v32/mach-fs/pinmux.c +++ b/arch/cris/arch-v32/mach-fs/pinmux.c @@ -54,7 +54,7 @@ crisv32_pinmux_alloc(int port, int first_pin, int last_pin, enum pin_mode mode) crisv32_pinmux_init(); - if (port > PORTS) + if (port > PORTS || port < 0) return -EINVAL; spin_lock_irqsave(&pinmux_lock, flags); @@ -195,7 +195,7 @@ int crisv32_pinmux_dealloc(int port, int first_pin, int last_pin) crisv32_pinmux_init(); - if (port > PORTS) + if (port > PORTS || port < 0) return -EINVAL; spin_lock_irqsave(&pinmux_lock, flags); |