iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

firewire: ohci: use devres for list of isochronous contexts

Browse Source 
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>
This commit is contained in:
Takashi Sakamoto 2023-06-04 14:44:48 +09:00
parent 5a95f1ded2
commit 30d97fd7e3
1 changed files with 9 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/firewire/ohci.c
View File

@ -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");