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remoteproc: imx_rproc: Fix invalid loaded resource table detection

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imx_rproc_elf_find_loaded_rsc_table() may incorrectly report a loaded
resource table even when the current firmware does not provide one.

When the device tree contains a "rsc-table" entry, priv->rsc_table is
non-NULL and denotes where a resource table would be located if one is
present in memory. However, when the current firmware has no resource
table, rproc->table_ptr is NULL. The function still returns
priv->rsc_table, and the remoteproc core interprets this as a valid loaded
resource table.

Fix this by returning NULL from imx_rproc_elf_find_loaded_rsc_table() when
there is no resource table for the current firmware (i.e. when
rproc->table_ptr is NULL). This aligns the function's semantics with the
remoteproc core: a loaded resource table is only reported when a valid
table_ptr exists.

With this change, starting firmware without a resource table no longer
triggers a crash.

Fixes: e954a1bd16 ("remoteproc: imx_rproc: Use imx specific hook for find_loaded_rsc_table")
Cc: stable@vger.kernel.org
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Acked-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/20260129-imx-rproc-fix-v3-1-fc4e41e6e750@nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
This commit is contained in:
Peng Fan 2026-01-29 09:44:48 +08:00 • committed by Mathieu Poirier
parent d935187cfb
commit 26aa529501
1 changed files with 4 additions and 0 deletions
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4
drivers/remoteproc/imx_rproc.c
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@ -729,6 +729,10 @@ imx_rproc_elf_find_loaded_rsc_table(struct rproc *rproc, const struct firmware *
{
struct imx_rproc *priv = rproc->priv;
/* No resource table in the firmware */
if (!rproc->table_ptr)
return NULL;
if (priv->rsc_table)
return (struct resource_table *)priv->rsc_table;