diff options
Diffstat (limited to 'Documentation')
-rw-r--r-- | Documentation/PCI/MSI-HOWTO.txt | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/PCI/MSI-HOWTO.txt b/Documentation/PCI/MSI-HOWTO.txt index faf37f9d29dc..1d7047a34862 100644 --- a/Documentation/PCI/MSI-HOWTO.txt +++ b/Documentation/PCI/MSI-HOWTO.txt | |||
@@ -137,8 +137,8 @@ interrupt number and frees the previously allocated message signaled | |||
137 | interrupt(s). The interrupt may subsequently be assigned to another | 137 | interrupt(s). The interrupt may subsequently be assigned to another |
138 | device, so drivers should not cache the value of dev->irq. | 138 | device, so drivers should not cache the value of dev->irq. |
139 | 139 | ||
140 | A device driver must always call free_irq() on the interrupt(s) | 140 | Before calling this function, a device driver must always call free_irq() |
141 | for which it has called request_irq() before calling this function. | 141 | on any interrupt for which it previously called request_irq(). |
142 | Failure to do so results in a BUG_ON(), leaving the device with | 142 | Failure to do so results in a BUG_ON(), leaving the device with |
143 | MSI enabled and thus leaking its vector. | 143 | MSI enabled and thus leaking its vector. |
144 | 144 | ||
@@ -217,8 +217,8 @@ the previously allocated message signaled interrupts. The interrupts may | |||
217 | subsequently be assigned to another device, so drivers should not cache | 217 | subsequently be assigned to another device, so drivers should not cache |
218 | the value of the 'vector' elements over a call to pci_disable_msix(). | 218 | the value of the 'vector' elements over a call to pci_disable_msix(). |
219 | 219 | ||
220 | A device driver must always call free_irq() on the interrupt(s) | 220 | Before calling this function, a device driver must always call free_irq() |
221 | for which it has called request_irq() before calling this function. | 221 | on any interrupt for which it previously called request_irq(). |
222 | Failure to do so results in a BUG_ON(), leaving the device with | 222 | Failure to do so results in a BUG_ON(), leaving the device with |
223 | MSI-X enabled and thus leaking its vector. | 223 | MSI-X enabled and thus leaking its vector. |
224 | 224 | ||