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| author | Fabio Estevam <fabio.estevam@freescale.com> | 2013-09-03 15:14:12 -0300 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2013-09-04 00:20:00 +0100 |
| commit | bae35992afc7ca2f446108b16670d76de0624e7a (patch) | |
| tree | 7a4efcb764fff5c5df94b05b802964b2623ff3ed /sound/soc | |
| parent | 5df498a27ab385294fdb7cad19c623d4da94a780 (diff) | |
| download | linux-bae35992afc7ca2f446108b16670d76de0624e7a.tar.gz linux-bae35992afc7ca2f446108b16670d76de0624e7a.tar.xz | |
ASoC: fsl: imx-audmux: Do not call imx_audmux_parse_dt_defaults() on non-dt kernel
Booting a mx51babbage board with a non-dt kernel leads to the following crash:
Unable to handle kernel NULL pointer dereference at virtual address 0000001c
pgd = 80004000
[0000001c] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.11.0-next-20130903 #287
task: 9f860000 ti: 9f862000 task.ti: 9f862000
PC is at of_get_next_available_child+0x5c/0x68
LR is at of_get_next_available_child+0x1c/0x68
pc : [<8043ea58>] lr : [<8043ea18>] psr: 60000193
sp : 9f863d58 ip : 00000000 fp : 9f863d74
r10: 9f89a010 r9 : 9f862000 r8 : 807bb26c
r7 : 80615d5c r6 : 00000000 r5 : 60000113 r4 : 00000000
r3 : 00000000 r2 : 808770a4 r1 : 00000011 r0 : 60000113
Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel
Control: 10c5387d Table: 90004019 DAC: 00000017
Process swapper/0 (pid: 1, stack limit = 0x9f862240)
Stack: (0x9f863d58 to 0x9f864000)
This is caused by commit 8548a464b9 (ASoC: imx-audmux: Read default
configuration from devicetree).
In order to fix this, add a check for 'of_id' so that
imx_audmux_parse_dt_defaults() only gets called when a dt kernel is running.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/fsl/imx-audmux.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/soc/fsl/imx-audmux.c b/sound/soc/fsl/imx-audmux.c index ab17381cc981..d3bf71a0ec56 100644 --- a/sound/soc/fsl/imx-audmux.c +++ b/sound/soc/fsl/imx-audmux.c @@ -335,7 +335,8 @@ static int imx_audmux_probe(struct platform_device *pdev) if (audmux_type == IMX31_AUDMUX) audmux_debugfs_init(); - imx_audmux_parse_dt_defaults(pdev, pdev->dev.of_node); + if (of_id) + imx_audmux_parse_dt_defaults(pdev, pdev->dev.of_node); return 0; } |