The patch titled drivers/hid: introduce missing kfree has been added to the -mm tree. Its filename is drivers-hid-introduce-missing-kfree.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find out what to do about this The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ Subject: drivers/hid: introduce missing kfree From: Julia Lawall <julia@xxxxxxx> Error handling code following a kzalloc should free the allocated data. The semantic match that finds the problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; statement S; expression E; identifier f,f1,l; position p1,p2; expression *ptr != NULL; @@ x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...x...+> } ( x->f1 = E | (x->f1 == NULL || ...) | f(...,x->f1,...) ) ...> ( return \(0\|<+...x...+>\|ptr\); | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line) // </smpl> Signed-off-by: Julia Lawall <julia@xxxxxxx> Cc: Jiri Kosina <jkosina@xxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- drivers/hid/hid-debug.c | 1 + 1 file changed, 1 insertion(+) diff -puN drivers/hid/hid-debug.c~drivers-hid-introduce-missing-kfree drivers/hid/hid-debug.c --- a/drivers/hid/hid-debug.c~drivers-hid-introduce-missing-kfree +++ a/drivers/hid/hid-debug.c @@ -928,6 +928,7 @@ static int hid_debug_events_open(struct if (!(list->hid_debug_buf = kzalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_KERNEL))) { err = -ENOMEM; + kfree(list); goto out; } list->hdev = (struct hid_device *) inode->i_private; _ Patches currently in -mm which might be from julia@xxxxxxx are linux-next.patch drivers-media-dvb-use-dst_type-field-instead-of-type_flags.patch drivers-media-video-gspca-introduce-missing-kfree.patch drivers-ata-use-resource_size.patch drivers-mmc-correct-error-handling-code.patch drivers-rtc-correct-error-handling-code.patch drivers-video-imxfbc-fix-resource-size-off-by-1-error.patch drivers-video-add-kmalloc-null-tests.patch drivers-video-add-kmalloc-null-tests-fix.patch edac-fix-resource-size-calculation.patch fs-romfs-correct-error-handling-code.patch drivers-vlynq-vlynqc-fix-resource-size-off-by-1-error.patch drivers-rtc-introduce-missing-kfree.patch drivers-hid-introduce-missing-kfree.patch drivers-md-introduce-missing-kfree.patch drivers-ata-introduce-missing-kfree.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html