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net: ethernet: adi: adin1110: Fix some error handling path in adin1110_read_fifo()

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BugLink: https://bugs.launchpad.net/bugs/2097301

[ Upstream commit 83211ae1640516accae645de82f5a0a142676897 ]

If 'frame_size' is too small or if 'round_len' is an error code, it is
likely that an error code should be returned to the caller.

Actually, 'ret' is likely to be 0, so if one of these sanity checks fails,
'success' is returned.

Return -EINVAL instead.

Fixes: bc93e19d08 ("net: ethernet: adi: Add ADIN1110 support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://patch.msgid.link/8ff73b40f50d8fa994a454911b66adebce8da266.1727981562.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Manuel Diewald <manuel.diewald@canonical.com>
Signed-off-by: Koichiro Den <koichiro.den@canonical.com>
This commit is contained in:
Christophe JAILLET
2024-10-03 20:53:15 +02:00
committed by Mehmet Basaran
parent 75d448962a
commit 8348582d7f
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/net/ethernet/adi/adin1110.c
+2 -2
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@@ -318,11 +318,11 @@ static int adin1110_read_fifo(struct adin1110_port_priv *port_priv)
* from the ADIN1110 frame header.
*/
if (frame_size < ADIN1110_FRAME_HEADER_LEN + ADIN1110_FEC_LEN)
return ret;
return -EINVAL;
round_len = adin1110_round_len(frame_size);
if (round_len < 0)
return ret;
return -EINVAL;
frame_size_no_fcs = frame_size - ADIN1110_FRAME_HEADER_LEN - ADIN1110_FEC_LEN;
memset(priv->data, 0, ADIN1110_RD_HEADER_LEN);