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| author | Tony Lindgren <tony@atomide.com> | 2019-09-05 22:01:29 +0200 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2019-09-05 22:01:29 +0200 |
| commit | 2783d0638a51e8dba6319d9f4a2b445995a4fad1 (patch) | |
| tree | 92dd0da42fa8bf07290c0488e26e43cadb1d9ea4 /include | |
| parent | bus: ti-sysc: Fix clock handling for no-idle quirks (diff) | |
| download | linux-2783d0638a51e8dba6319d9f4a2b445995a4fad1.tar.xz linux-2783d0638a51e8dba6319d9f4a2b445995a4fad1.zip | |
bus: ti-sysc: Fix handling of invalid clocks
We can currently get "Unable to handle kernel paging request at
virtual address" for invalid clocks with dts node but no driver:
(__clk_get_hw) from [<c0138ebc>] (ti_sysc_find_one_clockdomain+0x18/0x34)
(ti_sysc_find_one_clockdomain) from [<c0138f0c>] (ti_sysc_clkdm_init+0x34/0xdc)
(ti_sysc_clkdm_init) from [<c0584660>] (sysc_probe+0xa50/0x10e8)
(sysc_probe) from [<c065c6ac>] (platform_drv_probe+0x58/0xa8)
Let's add IS_ERR checks to ti_sysc_clkdm_init() as And let's start treating
clk_get() with -ENOENT as a proper error. If the clock name is specified
in device tree we must succeed with clk_get() to continue. For modules with
no clock names specified in device tree we will just ignore the clocks.
Fixes: 2b2f7def058a ("bus: ti-sysc: Add support for missing clockdomain handling")
Acked-by: Roger Quadros <rogerq@ti.com>
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions