pcim_release_all_regions(9)

🎀 NAME 🎀

okay so bestie, this is the pcim_release_all_regions(9) page from the Kernel API Manual 💖 and it does exactly what it says on the tin: pcim_release_all_regions — Release all regions of a PCI-device ✨

🌸 SYNOPSIS 🌸

void pcim_release_all_regions (struct pci_dev *pdev );

💅 ARGUMENTS 💅

• pdev — the PCI device 🫶

🦋 DESCRIPTION 🦋

okay so picture this: it releases all the regions that were previously requested through pcim_request_region or pcim_request_all_regions. literally all of them, no cap 💀✨

and here's the vibe check: it can be called from any context, i.e., not necessarily as a counterpart to pcim_request_all_regions. so yeah, it's flexible like that 💁‍♀️ periodt.

🔥 SEE ALSO 🔥

also peep the Kernel file ./drivers/pci/devres.c and these iconic little functions, iykyk 👑:

• devm_pci_remap_iospace(9)
• devm_pci_remap_cfgspace(9)
• devm_pci_remap_cfg_resource(9)
• pcim_set_mwi(9)
• pcim_intx(9)
• pcim_enable_device(9)
• pcim_pin_device(9)
• pcim_iomap_table(9)
• pcim_iomap(9)
• pcim_iounmap(9)
• pcim_iomap_region(9)
• pcim_iounmap_region(9)
• pcim_iomap_regions(9)
• pcim_request_region(9)
• pcim_release_region(9)
• pcim_request_all_regions(9)
• pcim_iomap_range(9)

and that's the whole page, bestie 🫶 this little icon comes from ./drivers/pci, dated October 2026 — mwah 💋✨