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authorMatthijs Kooijman <matthijs@stdin.nl>2013-06-13 09:56:46 +0200
committerMatthijs Kooijman <matthijs@stdin.nl>2015-01-26 17:03:25 +0100
commit11ade32f20ce2779d99981947eac6b5c4e52f408 (patch)
tree4979a69826a0e3e55937e22f508ad4d0817a2655 /firmwares/wifishield/wifiHD/src/console.c
parentcb36793486dd8d8d91c16984c423dbad4f4710a6 (diff)
Fix race condition in SoftwareSerial::overflow()
If an interrupt causing overflow would occur between reading _buffer_overflow and clearing it, this overflow condition would be immediately cleared and never be returned by overflow(). By only clearing the overflow flag if an overflow actually occurred, this problem goes away (worst case overflow() returns false even though an overflow _just_ occurred, but then the next call to overflow() will return true).
Diffstat (limited to 'firmwares/wifishield/wifiHD/src/console.c')
0 files changed, 0 insertions, 0 deletions