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cxgbe(4): Fix bug in r296603. The memory window needs to be

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repositioned if the start address isn't in the window already.  One
of the bounds check used the end address instead.
This commit is contained in:
np 2016-03-10 20:36:32 +00:00
parent bc2429c936
commit 03f8f8e396
1 changed files with 1 additions and 1 deletions
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2
sys/dev/cxgbe/t4_main.c
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@ -2084,7 +2084,7 @@ rw_via_memwin(struct adapter *sc, int idx, uint32_t addr, uint32_t *val,
while (len > 0) {
rw_rlock(&mw->mw_lock);
mw_end = mw->mw_curpos + mw->mw_aperture;
if (addr >= mw_end || addr + len <= mw->mw_curpos) {
if (addr >= mw_end || addr < mw->mw_curpos) {
/* Will need to reposition the window */
if (!rw_try_upgrade(&mw->mw_lock)) {
rw_runlock(&mw->mw_lock);