Staging: rt2870: Don't call sprintf() with overlapping input and output.
The use of sprintf() to append to a buffer, as in sprintf(buf, "%sEntry: %d\n", buf, i) is not valid according to C99 ("If copying takes place between objects that overlap, the behavior is undefined."). It breaks at least in userspace under gcc -D_FORTIFY_SOURCE. Replace this construct with sprintf(buf + strlen(buf), "Entry: %d\n", i) This patch was automatically generated using perl -0pe 's/(sprintf\s*\(\s*([^,]*))(\s*,\s*")%s((?:[^"\\]|\\.)*"\s*,)\s*\2\s*,/$1 + strlen($2)$3$4/g' perl -0pe 's/(snprintf\s*\(\s*([^,]*))(\s*,[^,]*?)(\s*,\s*")%s((?:[^"\\]|\\.)*"\s*,)\s*\2\s*,/$1 + strlen($2)$3 - strlen($2)$4$5/g' Signed-off-by: Anders Kaseorg <andersk@mit.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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