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31 lines
1.2 KiB
Diff
31 lines
1.2 KiB
Diff
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From 1e24c54da257ab93cff5826be8a793b014a5dc9c Mon Sep 17 00:00:00 2001
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From: Hauke Mehrtens <hauke@hauke-m.de>
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Date: Mon, 21 Nov 2022 01:22:01 +0100
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Subject: ca8210: Fix crash by zero initializing data
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The struct cas_control embeds multiple generic SPI structures and we
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have to make sure these structures are initialized to default values.
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This driver does not set all attributes. When using kmalloc before some
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attributes were not initialized and contained random data which caused
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random crashes at bootup.
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Fixes: ded845a781a5 ("ieee802154: Add CA8210 IEEE 802.15.4 device driver")
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Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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Link: https://lore.kernel.org/r/20221121002201.1339636-1-hauke@hauke-m.de
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Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
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---
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drivers/net/ieee802154/ca8210.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/net/ieee802154/ca8210.c
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+++ b/drivers/net/ieee802154/ca8210.c
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@@ -926,7 +926,7 @@ static int ca8210_spi_transfer(
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dev_dbg(&spi->dev, "%s called\n", __func__);
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- cas_ctl = kmalloc(sizeof(*cas_ctl), GFP_ATOMIC);
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+ cas_ctl = kzalloc(sizeof(*cas_ctl), GFP_ATOMIC);
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if (!cas_ctl)
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return -ENOMEM;
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