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| author | Zijun Hu <quic_zijuhu@quicinc.com> | 2025-01-09 16:26:57 +0300 |
|---|---|---|
| committer | Rob Herring (Arm) <robh@kernel.org> | 2025-01-13 16:43:48 +0300 |
| commit | f73780e772c06901e99b2ad114b7f0f3fbe73ad4 (patch) | |
| tree | aa1487c82a204123bfda6f30322ccf040b5dfa16 | |
| parent | e4c00c9b1f70cd11792ff5b825899a6ee0234a62 (diff) | |
| download | linux-f73780e772c06901e99b2ad114b7f0f3fbe73ad4.tar.xz | |
of: property: Avoiding using uninitialized variable @imaplen in parse_interrupt_map()
parse_interrupt_map() will use uninitialized variable @imaplen if fails
to get property 'interrupt-map'.
Fix by using the variable after successfully getting the property.
Fixes: e7985f43609c ("of: property: Fix fw_devlink handling of interrupt-map")
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20250109-of_core_fix-v4-6-db8a72415b8c@quicinc.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
| -rw-r--r-- | drivers/of/property.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/of/property.c b/drivers/of/property.c index 519bf9229e61..9d8b68c72c36 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -1391,9 +1391,9 @@ static struct device_node *parse_interrupt_map(struct device_node *np, addrcells = of_bus_n_addr_cells(np); imap = of_get_property(np, "interrupt-map", &imaplen); - imaplen /= sizeof(*imap); if (!imap) return NULL; + imaplen /= sizeof(*imap); imap_end = imap + imaplen; |