On Thu, Jul 07, 2022 at 03:59:54PM +0530, Karthik Alapati wrote: > There are some usages of index pointer of list(w) which may not point to > the right entry when the required entry is not found and the list traversal > completes with index pointer pointing to the last entry. So, use w_found > flag to track the case where the entry is found. > > Currently, When the condition (w->dapm != dapm) is true the loop continues > and when it is not then it compares the name strings and breaks out of the > loop if they match with w pointing to the right entry and it also breaks > out of loop if they didn't match by additionally setting w to NULL. But > what if the condition (w->dapm != dapm) is never false and the list > traversal completes with w pointing to last entry then usage of it after > the iter may not be correct. And there is no way to know whether the entry > is found. So, if we introduce w_found to track when the entry is found > then we can account for the case where the entry is not actually found and > the list traversal completes. > > Fixes coccinelle error: > drivers/staging/greybus/audio_helper.c:135:7-8: ERROR: > invalid reference to the index variable of the iterator on line 127 > > Signed-off-by: Karthik Alapati <mail@xxxxxxxxxxx> Also, always at the very least, test-build your patches to ensure that they pass that step. This patch fails to build :( greg k-h
