| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | --- a/driver/nvram_stub.c |
| 2 | +++ b/driver/nvram_stub.c |
| 3 | @@ -22,6 +22,7 @@ typedef struct _vars { |
| 4 | #define VARS_T_OH sizeof(vars_t) |
| 5 | |
| 6 | static vars_t *vars = NULL; |
| 7 | +static int nvram_init_done = 0; |
| 8 | extern char *nvram_buf[]; |
| 9 | |
| 10 | int |
| 11 | @@ -33,6 +34,10 @@ BCMATTACHFN(nvram_init)(void *si) |
| 12 | uint nvs, bufsz; |
| 13 | vars_t *new; |
| 14 | |
| 15 | + nvram_init_done++; |
| 16 | + if (nvram_init_done != 1) |
| 17 | + return 0; |
| 18 | + |
| 19 | osh = si_osh(sih); |
| 20 | |
| 21 | nvs = R_REG(osh, &nvh->len) - sizeof(struct nvram_header); |
| 22 | @@ -79,6 +84,10 @@ BCMATTACHFN(nvram_exit)(void *si) |
| 23 | vars_t *this, *next; |
| 24 | si_t *sih; |
| 25 | |
| 26 | + nvram_init_done--; |
| 27 | + if (nvram_init_done != 0) |
| 28 | + return; |
| 29 | + |
| 30 | sih = (si_t *)si; |
| 31 | this = vars; |
| 32 | while (this) { |