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| author | Mike Rapoport <mike@compulab.co.il> | 2010-11-03 17:22:00 +0200 |
|---|---|---|
| committer | Nicolas Pitre <nico@fluxnic.net> | 2010-11-05 13:34:29 -0400 |
| commit | 7350f419724fd9472d3b5cc521538713f9797b62 (patch) | |
| tree | 4e11c938ca198e5b23280d622993777016e9b55b | |
| parent | 377304abefa208890dce5739e4f297c93240efb2 (diff) | |
| download | linux-7350f419724fd9472d3b5cc521538713f9797b62.tar.gz linux-7350f419724fd9472d3b5cc521538713f9797b62.tar.bz2 linux-7350f419724fd9472d3b5cc521538713f9797b62.zip | |
ARM: orion5x/kirkwood/mv78xx0: fix MPP configuration corner cases
Wrong MPP configuration would cause <cpu>_mpp_conf loop infinitely
because the mpp list iterator would not be incremented.
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
| -rw-r--r-- | arch/arm/mach-kirkwood/mpp.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-mv78xx0/mpp.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-orion5x/mpp.c | 4 |
3 files changed, 3 insertions, 9 deletions
diff --git a/arch/arm/mach-kirkwood/mpp.c b/arch/arm/mach-kirkwood/mpp.c index 065187d177c6..27901f702feb 100644 --- a/arch/arm/mach-kirkwood/mpp.c +++ b/arch/arm/mach-kirkwood/mpp.c @@ -59,7 +59,7 @@ void __init kirkwood_mpp_conf(unsigned int *mpp_list) } printk("\n"); - while (*mpp_list) { + for ( ; *mpp_list; mpp_list++) { unsigned int num = MPP_NUM(*mpp_list); unsigned int sel = MPP_SEL(*mpp_list); int shift, gpio_mode; @@ -88,8 +88,6 @@ void __init kirkwood_mpp_conf(unsigned int *mpp_list) if (sel != 0) gpio_mode = 0; orion_gpio_set_valid(num, gpio_mode); - - mpp_list++; } printk(KERN_DEBUG " final MPP regs:"); diff --git a/arch/arm/mach-mv78xx0/mpp.c b/arch/arm/mach-mv78xx0/mpp.c index 354ac514eb89..84db2dfc475c 100644 --- a/arch/arm/mach-mv78xx0/mpp.c +++ b/arch/arm/mach-mv78xx0/mpp.c @@ -54,7 +54,7 @@ void __init mv78xx0_mpp_conf(unsigned int *mpp_list) } printk("\n"); - while (*mpp_list) { + for ( ; *mpp_list; mpp_list++) { unsigned int num = MPP_NUM(*mpp_list); unsigned int sel = MPP_SEL(*mpp_list); int shift, gpio_mode; @@ -83,8 +83,6 @@ void __init mv78xx0_mpp_conf(unsigned int *mpp_list) if (sel != 0) gpio_mode = 0; orion_gpio_set_valid(num, gpio_mode); - - mpp_list++; } printk(KERN_DEBUG " final MPP regs:"); diff --git a/arch/arm/mach-orion5x/mpp.c b/arch/arm/mach-orion5x/mpp.c index bc4c3b9aaf83..db485d3b8144 100644 --- a/arch/arm/mach-orion5x/mpp.c +++ b/arch/arm/mach-orion5x/mpp.c @@ -127,7 +127,7 @@ void __init orion5x_mpp_conf(struct orion5x_mpp_mode *mode) /* Initialize gpiolib. */ orion_gpio_init(); - while (mode->mpp >= 0) { + for ( ; mode->mpp >= 0; mode++) { u32 *reg; int num_type; int shift; @@ -160,8 +160,6 @@ void __init orion5x_mpp_conf(struct orion5x_mpp_mode *mode) orion_gpio_set_unused(mode->mpp); orion_gpio_set_valid(mode->mpp, !!(mode->type == MPP_GPIO)); - - mode++; } writel(mpp_0_7_ctrl, MPP_0_7_CTRL); |