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tty: xilinx_uartps: Check the clk_enable return value
authorShubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Fri, 29 Jul 2022 11:47:48 +0000 (17:17 +0530)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 30 Aug 2022 11:26:01 +0000 (13:26 +0200)
commita000bafa61829d8c4d8219bc7d6918d907af91e5
tree8b83e7b0d20cf46b024a270794bd7864a259e83ftree | snapshot
parenta17fa1216c23bf28819bb957f71f1bab914ba9a8commit | diff
tty: xilinx_uartps: Check the clk_enable return value

Check the clk_enable return value.
If clocks are not enabled the register accesses could hang the
system so error out instead.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Link: https://lore.kernel.org/r/20220729114748.18332-8-shubhrajyoti.datta@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/xilinx_uartps.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git