drivers/net/wireless/intel/iwlwifi/pcie/trans.c:3730 iwl_trans_pcie_alloc() warn: passing zero to 'ERR_PTR'

From: kernel test robot
Date: Wed Aug 12 2020 - 04:31:23 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: fb893de323e2d39f7a1f6df425703a2edbdf56ea
commit: c239feec5038585d8ba622ecc97322e0e2f3398c iwlwifi: pcie: gen2: use DMA pool for byte-count tables
date: 3 months ago
config: parisc-randconfig-m031-20200811 (attached as .config)
compiler: hppa-linux-gcc (GCC) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

New smatch warnings:
drivers/net/wireless/intel/iwlwifi/pcie/trans.c:3730 iwl_trans_pcie_alloc() warn: passing zero to 'ERR_PTR'

Old smatch warnings:
drivers/net/wireless/intel/iwlwifi/pcie/trans.c:236 iwl_pcie_alloc_fw_monitor_block() warn: should '(((1))) << (power - 10)' be a 64 bit type?
drivers/net/wireless/intel/iwlwifi/pcie/trans.c:236 iwl_pcie_alloc_fw_monitor_block() warn: should '(((1))) << (max_power - 10)' be a 64 bit type?

vim +/ERR_PTR +3730 drivers/net/wireless/intel/iwlwifi/pcie/trans.c

f7805b33f9b13a drivers/net/wireless/intel/iwlwifi/pcie/trans.c Lior Cohen 2018-05-03 3718
a9248de42464e5 drivers/net/wireless/intel/iwlwifi/pcie/trans.c Shahar S Matityahu 2019-07-23 3719 iwl_dbg_tlv_init(trans);
a9248de42464e5 drivers/net/wireless/intel/iwlwifi/pcie/trans.c Shahar S Matityahu 2019-07-23 3720
a42a184458ae95 drivers/net/wireless/iwlwifi/iwl-trans-pcie.c Emmanuel Grumbach 2012-02-02 3721 return trans;
a42a184458ae95 drivers/net/wireless/iwlwifi/iwl-trans-pcie.c Emmanuel Grumbach 2012-02-02 3722
a8b691e6104e6b drivers/net/wireless/iwlwifi/pcie/trans.c Johannes Berg 2012-12-27 3723 out_free_ict:
a8b691e6104e6b drivers/net/wireless/iwlwifi/pcie/trans.c Johannes Berg 2012-12-27 3724 iwl_pcie_free_ict(trans);
a42a184458ae95 drivers/net/wireless/iwlwifi/iwl-trans-pcie.c Emmanuel Grumbach 2012-02-02 3725 out_no_pci:
6eb5e529d7e3bf drivers/net/wireless/intel/iwlwifi/pcie/trans.c Emmanuel Grumbach 2015-10-18 3726 free_percpu(trans_pcie->tso_hdr_page);
8188a18ee2e48c drivers/net/wireless/intel/iwlwifi/pcie/trans.c Johannes Berg 2019-09-19 3727 destroy_workqueue(trans_pcie->rba.alloc_wq);
8188a18ee2e48c drivers/net/wireless/intel/iwlwifi/pcie/trans.c Johannes Berg 2019-09-19 3728 out_free_trans:
7b501d10b18bc3 drivers/net/wireless/iwlwifi/pcie/trans.c Johannes Berg 2015-05-22 3729 iwl_trans_free(trans);
af3f2f740173f8 drivers/net/wireless/iwlwifi/pcie/trans.c Emmanuel Grumbach 2015-06-04 @3730 return ERR_PTR(ret);
a42a184458ae95 drivers/net/wireless/iwlwifi/iwl-trans-pcie.c Emmanuel Grumbach 2012-02-02 3731 }
b8a7547d77782b drivers/net/wireless/intel/iwlwifi/pcie/trans.c Shahar S Matityahu 2018-12-05 3732

:::::: The code at line 3730 was first introduced by commit
:::::: af3f2f740173f8b5c61dba46f900998c5984ccd9 iwlwifi: pcie: don't panic if pcie transport alloc fails

:::::: TO: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
:::::: CC: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>

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