gcc points out a theorerical string overflow: drivers/message/fusion/mptbase.c: In function 'mpt_detach': drivers/message/fusion/mptbase.c:2103:17: error: '%s' directive writing up to 31 bytes into a region of size 28 [-Werror=format-overflow=] sprintf(pname, MPT_PROCFS_MPTBASEDIR "/%s/summary", ioc->name); ^~~~~ drivers/message/fusion/mptbase.c:2103:2: note: 'sprintf' output between 13 and 44 bytes into a destination of size 32 We can simply double the size of the local buffer here to be on the safe side. Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> --- drivers/message/fusion/mptbase.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 62cff5afc6bd..46b67a67edc8 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -2079,7 +2079,7 @@ void mpt_detach(struct pci_dev *pdev) { MPT_ADAPTER *ioc = pci_get_drvdata(pdev); - char pname[32]; + char pname[64]; u8 cb_idx; unsigned long flags; struct workqueue_struct *wq; -- 2.9.0