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| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2023-06-04 14:44:48 +0900 |
|---|---|---|
| committer | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2023-06-06 07:54:23 +0900 |
| commit | 30d97fd7e30b6ba8ecef15c43797f90dad56ddab (patch) | |
| tree | 4d1cf0057dfadab80aedddd415225a03efa797c4 /drivers/firewire | |
| parent | 5a95f1ded28691e69f7d6718c5dcbc149613d431 (diff) | |
| download | lwn-30d97fd7e30b6ba8ecef15c43797f90dad56ddab.tar.gz lwn-30d97fd7e30b6ba8ecef15c43797f90dad56ddab.zip | |
firewire: ohci: use devres for list of isochronous contexts
The 1394 OHCI driver allocates the list of isochronous contexts as much
as the hardware supports.
This commit utilizes managed device resource to maintain the lifetime of
list.
Link: https://lore.kernel.org/r/20230604054451.161076-7-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Diffstat (limited to 'drivers/firewire')
| -rw-r--r-- | drivers/firewire/ohci.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c index cb6b43e3f67e..086505bd1729 100644 --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -3666,7 +3666,11 @@ static int pci_probe(struct pci_dev *dev, ohci->ir_context_mask = ohci->ir_context_support; ohci->n_ir = hweight32(ohci->ir_context_mask); size = sizeof(struct iso_context) * ohci->n_ir; - ohci->ir_context_list = kzalloc(size, GFP_KERNEL); + ohci->ir_context_list = devm_kzalloc(&dev->dev, size, GFP_KERNEL); + if (!ohci->ir_context_list) { + err = -ENOMEM; + goto fail_atresp_ctx; + } reg_write(ohci, OHCI1394_IsoXmitIntMaskSet, ~0); ohci->it_context_support = reg_read(ohci, OHCI1394_IsoXmitIntMaskSet); @@ -3679,11 +3683,10 @@ static int pci_probe(struct pci_dev *dev, ohci->it_context_mask = ohci->it_context_support; ohci->n_it = hweight32(ohci->it_context_mask); size = sizeof(struct iso_context) * ohci->n_it; - ohci->it_context_list = kzalloc(size, GFP_KERNEL); - - if (ohci->it_context_list == NULL || ohci->ir_context_list == NULL) { + ohci->it_context_list = devm_kzalloc(&dev->dev, size, GFP_KERNEL); + if (!ohci->it_context_list) { err = -ENOMEM; - goto fail_contexts; + goto fail_atresp_ctx; } ohci->self_id = ohci->misc_buffer + PAGE_SIZE/2; @@ -3721,9 +3724,7 @@ static int pci_probe(struct pci_dev *dev, fail_msi: pci_disable_msi(dev); - fail_contexts: - kfree(ohci->ir_context_list); - kfree(ohci->it_context_list); + fail_atresp_ctx: context_release(&ohci->at_response_ctx); fail_atreq_ctx: context_release(&ohci->at_request_ctx); @@ -3767,8 +3768,6 @@ static void pci_remove(struct pci_dev *dev) ar_context_release(&ohci->ar_response_ctx); context_release(&ohci->at_request_ctx); context_release(&ohci->at_response_ctx); - kfree(ohci->it_context_list); - kfree(ohci->ir_context_list); pci_disable_msi(dev); dev_notice(&dev->dev, "removing fw-ohci device\n"); |