diff options
| author | Seung-Woo Kim <sw0312.kim@samsung.com> | 2016-06-20 13:09:45 +0900 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2016-07-25 10:34:28 +0200 |
| commit | 65257a0deed5aee66b4e3708944f0be62a64cabc (patch) | |
| tree | 8e3094068e4775b24f1dd1b7b97b9e68c43f7f78 /drivers/mfd/rtl8411.c | |
| parent | 46d179525a1f6d16957dcb4624517bc04142b3e7 (diff) | |
mmc: dw_mmc: remove UBSAN warning in dw_mci_setup_bus()
This patch removes following UBSAN warnings in dw_mci_setup_bus().
UBSAN: Undefined behaviour in drivers/mmc/host/dw_mmc.c:1102:14
shift exponent 250 is too large for 32-bit type 'unsigned int'
Call trace:
[<ffffff90080908a8>] dump_backtrace+0x0/0x380
[<ffffff9008090c3c>] show_stack+0x14/0x20
[<ffffff90087457b8>] dump_stack+0xe0/0x120
[<ffffff90087b1360>] ubsan_epilogue+0x18/0x68
[<ffffff90087b1a94>] __ubsan_handle_shift_out_of_bounds+0x18c/0x1bc
[<ffffff9008d89cb8>] dw_mci_setup_bus+0x3a0/0x438
[...]
UBSAN: Undefined behaviour in drivers/mmc/host/dw_mmc.c:1132:27
shift exponent 250 is too large for 32-bit type 'unsigned int'
Call trace:
[<ffffff90080908a8>] dump_backtrace+0x0/0x380
[<ffffff9008090c3c>] show_stack+0x14/0x20
[<ffffff90087457b8>] dump_stack+0xe0/0x120
[<ffffff90087b1360>] ubsan_epilogue+0x18/0x68
[<ffffff90087b1a94>] __ubsan_handle_shift_out_of_bounds+0x18c/0x1bc
[<ffffff9008d89c9c>] dw_mci_setup_bus+0x384/0x438
[...]
The warnings are caused because of bit shift which is used to
filter spamming message for CONFIG_MMC_CLKGATE, but the config is
already removed. So this patch just removes the shift.
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mfd/rtl8411.c')
0 files changed, 0 insertions, 0 deletions