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RDMA/bnxt_re: Check debugfs parameter allocation for failure

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bnxt_re_debugfs_add_pdev() allocates per-file private data for the CC
configuration debugfs entries. The loop that initializes those entries
uses rdev->cc_config_params immediately, so allocation failure would lead
to NULL pointer dereferences while setting up debugfs.

Debugfs is best-effort. If the CC configuration private data cannot be
allocated just stop.

Link: https://patch.msgid.link/r/20260606040644.13-1-ruoyuw560@gmail.com
Signed-off-by: Ruoyu Wang <ruoyuw560@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Ruoyu Wang 2026-06-06 12:06:44 +08:00 committed by Jason Gunthorpe
parent 20ff935086
commit 2cde8282ff
1 changed files with 2 additions and 0 deletions
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2
drivers/infiniband/hw/bnxt_re/debugfs.c
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@ -498,6 +498,8 @@ void bnxt_re_debugfs_add_pdev(struct bnxt_re_dev *rdev)
bnxt_re_debugfs_add_info(rdev);
rdev->cc_config_params = kzalloc_obj(*cc_params);
if (!rdev->cc_config_params)
return;
for (i = 0; i < BNXT_RE_CC_PARAM_GEN0; i++) {
struct bnxt_re_cc_param *tmp_params = &rdev->cc_config_params->gen0_parms[i];