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i3c: mipi-i3c-hci: Stop reading Extended Capabilities if capability ID is 0

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Extended Capability ID value 0 is special.  It signifies the end of the
list.  Stop reading Extended Capabilities if capability ID is 0.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260106164416.67074-3-adrian.hunter@intel.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Adrian Hunter
2026-01-06 18:44:07 +02:00
committed by Alexandre Belloni
parent 840688d8e6
commit 0818e4aa8f
1 changed files with 1 additions and 1 deletions
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2
drivers/i3c/master/mipi-i3c-hci/ext_caps.c
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@@ -271,7 +271,7 @@ int i3c_hci_parse_ext_caps(struct i3c_hci *hci)
cap_length = FIELD_GET(CAP_HEADER_LENGTH, cap_header);
dev_dbg(&hci->master.dev, "id=0x%02x length=%d",
cap_id, cap_length);
if (!cap_length)
if (!cap_id || !cap_length)
break;
if (curr_cap + cap_length * 4 >= end) {
dev_err(&hci->master.dev,