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(parent: 84c0eb2) | patch
i2c: stm32f7: prevent array underflow in stm32f7_get_lower_rate()
authorDan Carpenter <dan.carpenter@oracle.com>
Wed, 29 Apr 2020 13:23:23 +0000 (16:23 +0300)
committerWolfram Sang <wsa@the-dreams.de>
Thu, 30 Apr 2020 14:07:14 +0000 (16:07 +0200)
commit08736e83079929bdbff8ba91c6bdb3d3e57e0abd
tree921ea499bf24bf3f535b7718e75aa53c78bbd8f1tree | snapshot
parent84c0eb212c88176142a0aaf1f896d9bddd8bcb7acommit | diff
i2c: stm32f7: prevent array underflow in stm32f7_get_lower_rate()

We want to break with "i" set to zero whether we find the rate we want
or not.  In the current code, if we don't find the rate we want then it
exits the loop with "i" set to -1 and results in an array underflow.

Fixes: 09cc9a3bce91 ("i2c: stm32f7: allows for any bus frequency")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Alain Volmat <alain.volmat@st.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
drivers/i2c/busses/i2c-stm32f7.c diff | blob | history
Domain: System / Kernel;