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irq: Simplify condition in irq_matrix_reserve()

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The if condition in irq_matrix_reserve() can be much simpler.

While at it fix a typo in the comment.

Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210211070953.5914-1-jgross@suse.com
This commit is contained in:
Juergen Gross 2021-02-11 08:09:53 +01:00 committed by Thomas Gleixner
parent ba9e6cab49
commit 2c6b02185c
1 changed files with 2 additions and 3 deletions
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5
kernel/irq/matrix.c
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@ -337,15 +337,14 @@ void irq_matrix_assign(struct irq_matrix *m, unsigned int bit)
* irq_matrix_reserve - Reserve interrupts
* @m: Matrix pointer
*
* This is merily a book keeping call. It increments the number of globally
* This is merely a book keeping call. It increments the number of globally
* reserved interrupt bits w/o actually allocating them. This allows to
* setup interrupt descriptors w/o assigning low level resources to it.
* The actual allocation happens when the interrupt gets activated.
*/
void irq_matrix_reserve(struct irq_matrix *m)
{
if (m->global_reserved <= m->global_available &&
m->global_reserved + 1 > m->global_available)
if (m->global_reserved == m->global_available)
pr_warn("Interrupt reservation exceeds available resources\n");
m->global_reserved++;