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Message-ID: <20100218202911.GS21755@atomide.com>
Date: Thu, 18 Feb 2010 12:29:11 -0800
From: Tony Lindgren <tony@...mide.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Subject: [GIT PULL] omap fix for 2.6.33-rc8
Hi Linus,
Please pull one more omap fix from:
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git omap-fixes-for-linus
Regards,
Tony
The following changes since commit 724e6d3fe8003c3f60bf404bf22e4e331327c596:
Linus Torvalds (1):
Linux 2.6.33-rc8
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git omap-fixes-for-linus
Ranjith Lohithakshan (1):
omap: Remove DEBUG_FS dependency for mux name checking
arch/arm/mach-omap2/mux.c | 12 +++++-------
1 files changed, 5 insertions(+), 7 deletions(-)
From: Ranjith Lohithakshan <ranjithl@...com>
Date: Wed, 17 Feb 2010 17:17:01 +0000
Subject: [PATCH] omap: Remove DEBUG_FS dependency for mux name checking
The check for a valid mux name should be performed regardless of whether
DEBUG_FS is enabled or not. Otherwise without DEBUG_FS, we get:
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c0004000
[00000000] *pgd=00000000
Internal error: Oops: 5 [#1]
last sysfs file:
Modules linked in:
CPU: 0 Not tainted (2.6.33-rc8 #10)
PC is at strcmp+0x18/0x40
LR is at omap_mux_init_signal+0x68/0x14c
...
This fixes the issue currently seen with boards not booting up
if DEBUG_FS is not enabled in defconfig.
Note that the earlier ifndef + ifdef now becomes simpler ifdef else:
If CONFIG_OMAP_MUX is selected, we use pin names. If it's not selected,
we only want the GPIO to mux register mapping.
Signed-off-by: Ranjith Lohithakshan <ranjithl@...com>
Signed-off-by: Tony Lindgren <tony@...mide.com>
diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c
index 5fedc50..5fef73f 100644
--- a/arch/arm/mach-omap2/mux.c
+++ b/arch/arm/mach-omap2/mux.c
@@ -961,16 +961,14 @@ static void __init omap_mux_init_list(struct omap_mux *superset)
while (superset->reg_offset != OMAP_MUX_TERMINATOR) {
struct omap_mux *entry;
-#ifndef CONFIG_OMAP_MUX
- /* Skip pins that are not muxed as GPIO by bootloader */
- if (!OMAP_MODE_GPIO(omap_mux_read(superset->reg_offset))) {
+#ifdef CONFIG_OMAP_MUX
+ if (!superset->muxnames || !superset->muxnames[0]) {
superset++;
continue;
}
-#endif
-
-#if defined(CONFIG_OMAP_MUX) && defined(CONFIG_DEBUG_FS)
- if (!superset->muxnames || !superset->muxnames[0]) {
+#else
+ /* Skip pins that are not muxed as GPIO by bootloader */
+ if (!OMAP_MODE_GPIO(omap_mux_read(superset->reg_offset))) {
superset++;
continue;
}
The following changes since commit 724e6d3fe8003c3f60bf404bf22e4e331327c596:
Linus Torvalds (1):
Linux 2.6.33-rc8
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git omap-fixes-for-linus
Ranjith Lohithakshan (1):
omap: Remove DEBUG_FS dependency for mux name checking
arch/arm/mach-omap2/mux.c | 12 +++++-------
1 files changed, 5 insertions(+), 7 deletions(-)
From: Ranjith Lohithakshan <ranjithl@...com>
Date: Wed, 17 Feb 2010 17:17:01 +0000
Subject: [PATCH] omap: Remove DEBUG_FS dependency for mux name checking
The check for a valid mux name should be performed regardless of whether
DEBUG_FS is enabled or not. Otherwise without DEBUG_FS, we get:
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c0004000
[00000000] *pgd=00000000
Internal error: Oops: 5 [#1]
last sysfs file:
Modules linked in:
CPU: 0 Not tainted (2.6.33-rc8 #10)
PC is at strcmp+0x18/0x40
LR is at omap_mux_init_signal+0x68/0x14c
...
This fixes the issue currently seen with boards not booting up
if DEBUG_FS is not enabled in defconfig.
Note that the earlier ifndef + ifdef now becomes simpler ifdef else:
If CONFIG_OMAP_MUX is selected, we use pin names. If it's not selected,
we only want the GPIO to mux register mapping.
Signed-off-by: Ranjith Lohithakshan <ranjithl@...com>
Signed-off-by: Tony Lindgren <tony@...mide.com>
diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c
index 5fedc50..5fef73f 100644
--- a/arch/arm/mach-omap2/mux.c
+++ b/arch/arm/mach-omap2/mux.c
@@ -961,16 +961,14 @@ static void __init omap_mux_init_list(struct omap_mux *superset)
while (superset->reg_offset != OMAP_MUX_TERMINATOR) {
struct omap_mux *entry;
-#ifndef CONFIG_OMAP_MUX
- /* Skip pins that are not muxed as GPIO by bootloader */
- if (!OMAP_MODE_GPIO(omap_mux_read(superset->reg_offset))) {
+#ifdef CONFIG_OMAP_MUX
+ if (!superset->muxnames || !superset->muxnames[0]) {
superset++;
continue;
}
-#endif
-
-#if defined(CONFIG_OMAP_MUX) && defined(CONFIG_DEBUG_FS)
- if (!superset->muxnames || !superset->muxnames[0]) {
+#else
+ /* Skip pins that are not muxed as GPIO by bootloader */
+ if (!OMAP_MODE_GPIO(omap_mux_read(superset->reg_offset))) {
superset++;
continue;
}
--
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