check: don't use uninitialized variables
check: don't use uninitialized variables

CID 154853 (#1 of 1): Uninitialized scalar variable (UNINIT)
7. uninit_use_in_call: Using uninitialized value c when calling write.

Reported-by: coverity
Signed-off-by: Andrew Vagin <74c05afa918858348d6db8037d82fa8124870113@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <c9a32589e048e044184536f7ac71ef92fe82df3e@parallels.com>

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