Messages in this thread Patch in this message | | | From | studentxswpy@163 ... | Subject | [PATCH] mm: check the return value of ioremap() in macio_init() | Date | Tue, 2 Aug 2022 15:41:48 +0800 |
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From: Xie Shaowen <studentxswpy@163.com>
The function ioremap() in macio_init() can fail, so its return value should be checked.
Fixes: 36874579dbf4c ("[PATCH] powerpc: macio-adb build fix") Reported-by: Hacash Robot <hacashRobot@santino.com> Signed-off-by: Xie Shaowen <studentxswpy@163.com> --- drivers/macintosh/macio-adb.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/macintosh/macio-adb.c b/drivers/macintosh/macio-adb.c index 9b63bd2551c6..cd4e34d15c26 100644 --- a/drivers/macintosh/macio-adb.c +++ b/drivers/macintosh/macio-adb.c @@ -108,6 +108,10 @@ int macio_init(void) return -ENXIO; } adb = ioremap(r.start, sizeof(struct adb_regs)); + if (!adb) { + of_node_put(adbs); + return -ENOMEM; + } out_8(&adb->ctrl.r, 0); out_8(&adb->intr.r, 0); -- 2.25.1
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