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| author | Arnd Bergmann <arnd@arndb.de> | 2018-10-05 18:15:49 +0200 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2018-11-02 22:31:24 -0700 |
| commit | d4f79cb872bd4faa44eb133c1aee5f3411342c54 (patch) | |
| tree | 4cf17cbfbd4ec0b9b35c2ac4cc836a6c782fc59c | |
| parent | 513eb98595522bc0cb83831a9daee1d5738e66f1 (diff) | |
| download | linux-d4f79cb872bd4faa44eb133c1aee5f3411342c54.tar.gz | |
ARM: orion: avoid VLA in orion_mpp_conf
Testing randconfig builds found an instance of a VLA that was
missed when determining that we have removed them all:
arch/arm/plat-orion/mpp.c: In function 'orion_mpp_conf':
arch/arm/plat-orion/mpp.c:31:2: error: ISO C90 forbids variable length array 'mpp_ctrl' [-Werror=vla]
This one is fairly straightforward: we know what all three
callers are, and the maximum length is not very long.
Fixes: 68664695ae57 ("Makefile: Globally enable VLA warning")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
| -rw-r--r-- | arch/arm/plat-orion/mpp.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/arm/plat-orion/mpp.c b/arch/arm/plat-orion/mpp.c index 5b4ff9373c89..8a6880d528b6 100644 --- a/arch/arm/plat-orion/mpp.c +++ b/arch/arm/plat-orion/mpp.c @@ -28,10 +28,15 @@ void __init orion_mpp_conf(unsigned int *mpp_list, unsigned int variant_mask, unsigned int mpp_max, void __iomem *dev_bus) { unsigned int mpp_nr_regs = (1 + mpp_max/8); - u32 mpp_ctrl[mpp_nr_regs]; + u32 mpp_ctrl[8]; int i; printk(KERN_DEBUG "initial MPP regs:"); + if (mpp_nr_regs > ARRAY_SIZE(mpp_ctrl)) { + printk(KERN_ERR "orion_mpp_conf: invalid mpp_max\n"); + return; + } + for (i = 0; i < mpp_nr_regs; i++) { mpp_ctrl[i] = readl(mpp_ctrl_addr(i, dev_bus)); printk(" %08x", mpp_ctrl[i]); |